@OP: Until Zhou is proven guilty of something, I don't know why you would have a problem with him advertising on the forums. Do you have a problem with Pirate advertising on the forums?
Has he even been charged with something yet?
Anyway from good judgment, in comparison how quickly the scammer label is applied to persons he should get one. You can argue that the label is commonly used prematurely and that in this case special care is needed but the latter is not the case.
Again, it's hypocrisy.
Scammer tag is usually quickly applied because there is clear evidence that the party is guilty. Not very clear here, too many conflicting facts and too much speculation.