Why not? Well, let's figure it out. You and the purchased account are applying for a place in the company's signature. But the rank of the purchased account is higher than yours. And they accept him simply by skimming through his latest posts. But you are not accepted, because there are no more places. Then you go to ask why it happened. And you discover for yourself that the account is not so good; there are many inconsistencies in the languages, presence on the forum, change of mail, password, and language, and in general, it is clear that the account has changed its owner.
Are you swallowing injustice and waiting for the next chance? And the scammer, who just bought an account, walks around and boldly declares to everyone that he was ill, that his dad and grandfather died, that he learned five languages and other lies.
But at the same time, he personally does not deceive anyone financially.
Is everyone ready to ignore it? I doubt. If someone does not mark such cases with a negative tag, there will be those who still do everything right.