Hi everyone so quick questions out of the 100+ platforms to trade coins on.

Are there some you would say need to watch out for? Or are they all truth worthy? I seen some that are very popular in Russia and also have Chinese mode from English translator, as well as Russian.

Some are so hard to navigate on, won't allow an address for the coin you want to get (Deposit for such currency is temporary off.) And it's like the only platform the coined is offered on aswell. Why would they not allow it? Should this be a warning or is it just how it is sometimes?

Some of these verification processes take forever. I guess it's best to sign up on all 100 maybe and wait it out until verified or the right time comes?

I've noticed last week on coinmarketcap.com there was 1,372 coins, then 3 days later 1,380 coins, then this morning 1,370 coins not back too 1,372? This change means a coin was taken off the market or what? Was it a exit scam or something like that?

Also some of these coins when clicking on the names to get more information about them. Has no information on Circulating Supply. Some have a total supply and some don't. Is there a place to find out what the supply is at all or nothing really (using coinmarketcap)?

Last question. For platforms paying out for withdrawing the funds to the bank account. Do they pay up in the few $100k? Or is it best to withdraw little by little daily? I've heard some people get account locked up and frozen without any explanations, even on verified accounts. I understand not all platforms might not have the money directly to pay out. So is it best to just transfer BTC/another coin to a more popular trusted platform to do this process maybe?

Thank you so much!

Sorry for my grammar on the English topic here.