What is ToS?

It is Term of Service, abbreviated as ToS.
On some platforms, there is another term that used for the same purpose, called as a User Agreement.

There are lots of things presented in ToS, but there are some vital parts that you must read them carefully before doing deposits to your accounts. Because if you are not careful, you might lose your money, and those platforms have rights to reject your deposit returns when you fraud them, or violate their rules in ToS.

Don't take risks and waste your time by trying to cheat them with VPS, multiple accounts. Eventually, you will be found, and you will lose your money (original capital or profits from tradings/ gamblings).

Like in the forum, you can not break rules, plagiarise, then ask for forgiveness after being permanent banned. On exchanges/ casinos, you can not cheat/ abuse/ break their rules and ask for supports or forgiveness.

Restrictions, such as restricted locations
Number of allowable accounts: allow multi accounts/ linked-accounts or not.
Restricted activities (discover by yourself)
Identities verification (discover by yourself)
More things

Another method to fastly get them (but you might miss some details) is reading FAQs

Quote from: Thirdspace on September 01, 2019, 10:58:41 PM

almost never read them Cheesy

I just read their FAQs and helpdesk section
faqs usually points out the important things from the ToS
and helpdesk Q and A contains further information on specific instance case

Restricted locations
I give some examples from some exchanges and casinos

Bittrex

Quote from: https://bittrex.zendesk.com/hc/en-us/articles/360001411486

2.2
You may not use the Services if you are located in, or a citizen or resident of the United States. You may not use the Services if you are located in, or a citizen or resident of any state, country, territory or other jurisdiction that is embargoed by the United States, or if you are on any trade or economic sanctions lists, such as the United Nations Security Council Sanctions List, or if you are restricted or prohibited from engaging in any type of trading by the European Union, Hong Kong Monetary Authority, Hong Kong Customs and Excise Department, Office of Foreign Asset Control or any other administrative law enforcement agencies.
[ ... read more]

Poloniex

Quote from: https://poloniex.com/terms/

37. LEGAL COMPLIANCE
The Services are subject to all applicable export control restrictions, and, by using the Services, you represent that your actions are not in violation of such export control restrictions. Without limiting the foregoing, you may not use the Services if (i) you are a resident, national or agent of Cuba, Iran, North Korea, Sudan, Syria or any other country to which the United States, the United Kingdom or the European Union embargoes goods or imposes similar sanctions (Restricted Territories); (ii) you are a member of any sanctions list or equivalent maintained by the United States government, the United Kingdom government or by the European Union (Restricted Persons) or (iii) you intend to transact with any Restricted Territories or Restricted Persons.

Cloudbet

Quote from: https://www.cloudbet.com/en/terms_and_conditions

5.1.3. You agree that at all times when using the Website you are not a resident of any of the following countries:

the United States of America and its territories;
United Kingdom;
Hong Kong;
Singapore;

Sportsbet.io

Quote

3.3. You are aware that the right to access and use the website and any products there offered, may be considered illegal in certain countries. We are not able to verify the legality of service in each and every jurisdiction, consequently, you are responsible in determining whether your accessing and using our website is compliant with the applicable laws in your country and you warrant to us that gambling is not illegal in the territory where you reside. For various legal or commercial reasons, we do not permit accounts to be opened or used by customers resident in certain jurisdictions, including the United States of America (and her dependencies, military bases and territories), Australia, United Kingdom, Estonia, or other restricted jurisdictions (Restricted Jurisdiction) as communicated by us from time to time. By using the Website you confirm you are not a resident in a Restricted Jurisdiction.

3.4 When attempting to open an account or using the Website, it is the responsibility of the player to verify whether gambling is legal in that particular jurisdiction. If you open or use the Website while residing in a Restricted Jurisdiction: your account may be closed by us immediately; any winnings and bonuses will be confiscated and remaining balance returned (subject to reasonable charges), and any returns, winnings or bonuses which you have gained or accrued will be forfeited by you and may be reclaimed by us; and you will return to us on demand any such funds which have been withdrawn.

Identities verification
Bittrex

Quote from: https://bittrex.zendesk.com/hc/en-us/articles/360001411486

3.3
You may be required to provide Bittrex with certain personal information, including, but not limited to, your name, address, telephone number, email address, date of birth, taxpayer identification number, government identification number, photograph of your government-issued ID or other photographic proof of your identity, and information regarding your bank account.

Binance

Quote from: https://www.binance.com/en/terms

5.b. User Identity Verification
The identity verification information we request may include, but is not limited to, your: Name, Email Address, Contact Information, Telephone Number, Username, Government Issued ID, Date of Birth and other information collected at the time of account registration. In providing this required information, you confirm that it is accurate and authentic. Post-registration, you must guarantee that the information is truthful, complete and updated in a timely manner with any changes.

Number of allowable accounts
There are platforms allows multiple/linked accounts, but there are some platforms don't allow multiple accounts. Please be careful and read ToS.

Cloudbet

Quote from: https://www.cloudbet.com/en/terms_and_conditions

5.1.9.2. Only one account per customer/IP/household is allowed. If you attempt and/or successfully open more than one account, all of your accounts may be blocked, suspended or closed and any bitcoin credited to your account frozen.

Sporstbet.io

Quote

3.5. You are allowed to have only one Member Account. If you attempt to open more than one Member Account, all of your accounts may be blocked, suspended or closed and any funds credited to your account/s will be frozen.

That one is a good example (we simply assume that user tells the truth).
SPORTSBET.IO / SPORTS BET IO ... SCAMMED ME FOR $150K USD +
He is a UK citizen, but tried to created and used multi-accounts on Sportsbet.io - that does neither accept UK cititzens nor allow multi-accounts.

FortuneJack

Quote from: FortuneJack on February 25, 2020, 11:13:08 AM

According to our Terms and Conditions, we reserve the right to terminate all the accounts onto the same IP. The rules apply to the accounts, coming from the same family, household, relative or a connected person that might be somehow linked with the acc.

Quote from: o_e_l_e_o on August 31, 2019, 07:26:57 PM

I would also recommend the following site: https://tosdr.org/ - Terms of Service; Didn't Read. It essentially provides easy to read and understand summaries of what you are agreeing to when you sign up to various sites. Unfortunately it doesn't have much crypto cover yet (Coinbase is the only site on there as far as I am aware), but a good resource nonetheless.

My favorite things I usually do when I have intention to join new platforms, in orders of priority, is:
- Reading FAQs
- Reading Term of Service/ Term and Conditions/ User agreements. The exact phrase will depend on each platform.