- Usage: Using ChipMixer before sending bitcoin to someone or using a local/p2p exchange or to trade bitcoin for fiat
- Considerations/Questions: Will the other person withdraw with a centralized exchange? Do they need to follow privacy practices (what if they are an average user)? Is using chipmixer opening them up to risk or is it something that should be kept in mind before sending people bitcoin from ChipMixer?
Bitcoin is fungible. If someone uses a third party that treats Bitcoin any other way, that's on them. They shouldn't do that.
- Usage: After receiving bitcoin from someone or using a local/p2p exchange to purchase bitcoin
- Considerations/Questions: Will sending bitcoins to ChipMixer open up the sender to any risk?
Why would there be any risk to the sender? They have nothing to do with whatever you do with your Bitcoins.
- Usage: Using ChipMixer before using a centralized exchange to sell bitcoin
- Considerations/Questions: Is there potential for the exchange to question the source of funds? Is using ChipMixer explainable? Is "I used it for my privacy" enough for a centralized exchange to let you through? Or does using ChipMixer pose a risk to your coins?
You're asking this at the wrong place. Any third party can make up any kind of BS. ChipMixer has some nice examples on the website:
Basic theory of Bitcoin mixing, part 1
What information is already public?
If you own or use some Bitcoin then at least one transaction has been confirmed on blockchain. There is no need to worry - that is how Bitcoin works.
Lets assume you have received 10 mBTC from your friend Bob. You gave them your public address and they have sent you. You can find this transaction with your wallet or blockchain explorer to see the details.
Transaction notes your address received 10 mBTC from different address. You know its Bobs but it is probably not public. If you are curious (and you are if you are reading this) then you can check how much Bob has. Balance of public addresses is public after all.
If you check transaction outputs - your 10 mBTC is one of them - you will find that Bob also sent somebody 20 mBTC. You were discussing it at work with Bob and Alice. It is possible it is Alices public address and Bob likes her more than you.
Furious you go for coffee. Barista shows you printed QR code. You mindlessly pay 0.1 mBTC with your mobile wallet. Your blockchain privacy has been lowered. How?
Baristas deposit address is printed which means it has been used by every bitcoin-using customer. Everyone around seen you pay with Bitcoin to public address and they can check your transaction to know your public address and how much Bitcoin you have. Bob is not there but he also knows where and when you have been drinking. Your coffee-induced habit has been recorded on blockchain forever.
You go out to your favorite vegan store. You try to pay when owner checks something on their computer and visibly reddens. They start shouting about unfair practices and slavery of coffee plantations. You are banned and cannot come back. What happened?
Baristas public address is well known. Vegan store owner may check if somebody transacts with them. When you paid for coffee - they did not know. But your vegan transaction is linked to previous transaction making it impossible to hide. If you could mix your Bitcoins you would have avoided that.
I think you're looking at this the wrong way. It doesn't matter to you what someone else can see on the blockchain, what matters to you is making sure your own privacy doesn't get compromised.