With B2B its all fine but P2P - big problem aspecially lately. 100 trades could be fine but 1 can mess all of them.
Use mixers if you are worried about it then!
LOL! If you are worried that your coins could be flagged as tainted, using mixers is a suicide. That would only make your coin suspicious or even tainted.
Though in my opinion this is a non-issue, a currency, that bitcoin is changes hands very frequently, so if funds that have been marked as bad or stolen gets to you, i don't feel you can be in any trouble since your address wasn't the first one to receive the stolen funds. My local currency for example is stolen from people on the streets, in their houses every goddamn day, that same money circulates, but as long as i am not the thief who stole the money, i don't worry about the origin of the paper money in my purse, even if there is a high chance it was stolen at some point.
I'm afraid you're wrong here. Don't compare cash with Bitcoin. Restaurants, barber shops, grocery stores, hotels, markets, and almost all business establishments don't have mechanisms in tracking whether your money is dirty or not. That's different with a lot of duly licensed or registered crypto companies. Centralized and regulated crypto platforms such as exchanges, payment processors, lending, crypto banks, and so on are normally AML-compliant, which means they have AML bots and tracking software running 24/7 to guard against dirty coins.
The moment your coins are marked dirty, you'll be in trouble. Your coin might be rejected. You might not be allowed to do trading or conversion. You might get banned. Your account could be locked or your funds frozen or even confiscated. Your wallet could be blacklisted. You could be fined. You could even be prosecuted.