One thing that has stopped me from coinjoining. I have heard random posts on the web about people who coinjoin and later either cannot sell the coinjoined sats or have their entire exchange account shut down if they move those particular sats to their exchange account.

While we should hope for bitcoin to be completely fungible with no concept of 'taint', unfortunately that does not seem to be true today. When you coinjoin, you may be mixing with the north korean or russian hackers stolen bitcoin and that may land you on some 'list' when you try to move your coins.

I don't know what the solution is to this type of problem. Perhaps the answer is everyone just coinjoins even more to make this 'taint' concept irrelevant, but unfortunately today it is extremely obvious onchain and coinjoin usage is extremely low so it is easy for exchanges to discriminate against coinjoin users.

I'd love to hear ways around this type of issue from bitcoiners, because bitcoin privacy should be the norm.