Trading in P2bpb2b is a bad idea! This is one of the worst crypto exchange, even I don't like its name! This exchange is full of fake volume. If you look st the buy and sell order and trading history of any tokens, you will realize it easily. I had to create an account there because of a bounty token, and then I realized how shit this exchange is!
Lol, why you hating the name?
Anyways, I get your point here, many exchanges are faking their volumes, including this one p2pb2b.
Probably used by some traders and bounty hunters when their tokens are listed their and then dump it as soon as it was listed. So I agree with the sentiments here, don't trust that exchange, the funny thing is that they shoot up to the number one spot, very, very doubtful indeed.