There really isn't anything to investigate. I have no idea whether the Angela account is fake or whether her "DT Experiment" thread was fake either. And at the end of the day, I don't really care. But the statement that A.S.S. mistakenly answered for her isn't really accurate. I read the post in question, and it isn't really that. I mean, they could be alternate accounts for the same person. But there isn't really any evidence that they are. And, yes, of course we check and would flag accounts with the same IP address. Those get flagged pretty much automatically, so the odds of us missing that are pretty slim. That isn't the case here. Believe it or not, people break rules here by finding clever and not-so-clever ways of registering multiple accounts. We usually find out, and if we do, we usually ban the person for trying to game the system. But it also isn't like we sit around stressing and wringing our hands over whether someone out there might possibly have duplicate accounts.
EDIT: And just an FYI, since most of the things that get posted in this subforum are either not good suggestions or are not really "suggestions" at all (a request for a name change does not qualify as a "forum suggestion"), I pretty much ignore this subforum for the most part.