Ahh alright, I have heard a lot about the RuneGear merge and that it caused a lot of users to go inactive because they were mainly interested in RuneScape.
Let's test his username, just to confirm
@"99"
His name doesn't have any special characters, must have come here from RuneGear!
Surprising that he found ForumKorner now, after nearly 5 years of inactivity. Looks like he's only been active here a little bit and has made 26 Posts since January with his other 2 being from 2010.
Perhaps he is compromised, or perhaps he really did just stumble on FK and use his old credentials, maybe an account recovery? Anyway he has a super cool username that doesn't really break the rules, since it's not character evading or anything, so he's a lucky guy!
Hope to see you more active, @"99"! You truly have an amazing username.