coinjoin (mixing) by its very definition is laundering.. of course exchanges are going to flag coins seen as coming from mixing services.
its literally people stupidly doing laundering to hide whatever less petty criminal thing they might have wanted to hide. yep they actually getting themselves into more of a tight spot by trying to hide the origins. because the hiding event is the flag they hoped to avoid by hiding
in short. if you have coins that were mixed.. dont expect a smooth ride if your going to deposit them into an exchange.. because those coins are "laundered"
But there's nothing wrong if some people use it to hide his identity and as we know the current world conditions are pretty much related with digital stuffs. Do you feel safe if you told or posted all of your Bitcoin on social media? You will get blackmailed and beggars asking for a donation, also don't forget about random people send you a malware.
i have never needed to use mixers. and for years now i have mentioned having a large stash of bitcoin from the early days, and i have never been blackmailed or sent crap.. why. because there are many ways to hide.
mixers are the worse kind because your using a criminal activity to hide in most cases a not so much bad activity.. its like murdering someone to hide the fact you stole a mars bar from a convenience store.. its absolutely stupid to do this.
instead do the smart thing. dont advertise your main stash address publicly. yes talk figuratively and if asked discuss things but dont tell people what type of system you have at home or if your using a hardware wallet a desktop node or a phone litewallet or if you have private key backups stored anywhere.
if your smart enough you can separate your social media/forum activity from your real world employment/business activity and also keep that separate from your family life.
i have been here since 2012 and im still good without needing to resort to using things that will cause red flags.
here is the thing..
if you truly want privacy.. forget wanting services to cater to providing you privacy, and instead think about your own actions first.
as you say your worried about people finding out about your value on social media.. well then stop posting your bitcoin address on it and they will never associate you to any given address.
if you dont want scam emails. then dont sign up to random crap that asks for emails.
if your too fluid and open with your activities and hope some central service or other system/ app platform can give you privacy.. forget it. its starts with you.
..
its like the cries i hear about private key backup. everyone wants some central service to back up keys to take away the users liability of stupidity should they lose their key and put the liability/blame on some service. where infact its up to the users to be more cautious about how public they are and their activities.
you cant blame an exchange for freezing its service offering to you because you broke its rules. by money laundering. you have to realise your action caused the freeze and adapt and be responsible.
mixers are a waste of time anyway. imagine you are a innocent guy doing nothing criminal. but you used an address for something embarrassing.. maybe you dont want your wife seeing that you bought a porn subscription or a sex doll.. so you use a mixer..
the thing is. actual criminals are the majority of mixers users.
so now your sex doll tainted coins. are mixed. and you instead get coins from some large organised crime scheme that can get the holder 20years prison time if found.
so now not only are you laundering but you also received coins from some large illicit criminal scheme like human trafficking, terrorism or illicit porn or drugs..
now you have 2 investigations happening on your account.
was it worth it to hide your sex doll fettish?