Whenever I try to log in, I write in the Username field "Anser" and it tells me that such username doesn't exist. Instead, if I write my old username (FMGBASKFH) I can log in perfectly. Why is this? Can a mod fix it? It's very annoying.
The username that logs you in is the one set in as your username. Anser is just your display name. FMGBASKFH is your username. Only Porple himself can change your username(the one you log in with).