I don't know about any new people who've hung around the IRC this year much, but a look at the members list for 2013 have very few people that leave an impression. My nominations have to go to the three that at least stand out in my memory in either a positive or negative light:
Miriam Blutleer (a.k.a. Octavia). I'm sure a great deal of the forum was annoyed with this MLP fan during the GIAW this past summer, but at least I'll give 'em credit for being persistent and not letting the jibes get to them. Could have easily went BAWWW and won the drama whore award, but instead they remained upbeat and pleasant throughout it all. Props for that.
Deranged (a.k.a. Long Duck Dong). Who the hell are you again? I vaguely remember you posting around before, but it's only your recent posts that made me think of you for this. But hey, you've been more active than a lot of newer members and are here for more than just asking for help, so you've got one of my nominations.
Rekios (a.k.a. GAME STEALER). You probably stand out in everyone's memories, but I doubt it's in a good way. Still, if the whole incident with Arlen's games didn't happen, you probably would have been a decent newbie to have around.