Joey wrote:The guy was named "Joey" and then his name changed to "Guest" followed by a string of numbers (e.g. "Guest38204"), which means that my nickname protection caught him and forced his nickname to be changed. If there isn't an @ by the name of somebody who is an operator (like Joey, Valtteri, Zeldamaster12, etc.) then it's an imposter.
Or to add to that, a staff member may accidentally make an error in their login password, which signs them in as a normal user. I've done it before too, but usually we correct that straight away. If you want to make sure, click that person's username in the side bar and select WHOIS, which will bring up said person's details, including their actual name.