There are dozens of blockchain analysis companies and there are hundreds of exchanges, and all of them have their own definition of taint and their own (unknown and secret) algorithms and protocols for assigning taint to certain coins. The only way you will find out for sure if any specific exchange thinks your coins are tainted is when they lock your account. Better then to just avoid any centralized exchange which has the ability to seize your coins, and trade on DEXs and peer to peer.
or you can do what oeleo refuses to do
RESEARCH
for instance. you find out where binance is registerd to then check that jurisdictions regulations about what the jurisdiction describes as their list of suspicious activities
yep find out what regulators say is a suspicious activity, which then regulated exchanges then follow and comply with
for instance no one uses hundreds of exchanges. so you dont need to research hundreds.
just look at the services you want to use and research what issues you might have when using those services you use.
then you can learn what kind of things services you use, watch out for. to then know how to interact with them or avoid them if they are going to cause you issues
its been over a week, after telling oeleo and his buddies about 20 times in multiple posts in multiple topics what U.S regulators tell VASPS (virtual asset service providers) what to watch out for.. its funny how oeleo pleads ignorance or gets sudden amnesia each time, just so he can play dumb in yet another topic of the same subject
oeleo wants to ignore the advice and YET AGAIN pretend its a secret and unknown
but he did make one step forward. to actually advise to avoid middlemen services