Centralized exchanges shouldn't even operate without being regulated. and as long as they are centrally controlled, they can be easily abused. Real exchanges (real decentralized exchange) have little or non of this problem.
Centralized exchanges are the source of many financial frauds in crypto world.
There are very few centralized exchanges don't ask for KYCs, but you can choose decentralized exchanges to avoid KYC requirements, if you don't want to do it. Crypto Bridge is one of good decentralized exchanges for you.
some let us not do KYC, but there are minimum deposit and withdrawal limits that we can do. yes if our goal is to trade I think choosing a really good exchange is the right choice. but if it's only to sell coins from a bounty, I guess wherever we can sell it.
but my advice is to avoid yobit.