So they're not identified IRL. Do they realise that this isn't how it works and just because they have come up with a slight pun or nod to the thread content, it doesn't make them less identifiable to people who know them or will recognise them from the situation??
Like, a name change will stop people here identifying your other posts, but the people you describe will still recognise themselves in your post and thus identify you if they are going to see your post