Just my humble opinion, but not Jameslie. Wouldn't be suprrised if it were someone like levibooty or Jamo; posters don't just disappear.
I don't read tweaks posts: it's incessant nonstop regurgitated nonsense, complete drivel, so maybe i'm off having not seen enough, but there are certain character/intellectual flaws which will be common amoung them that make it seem like they are the same poster, like they exist between dion and johnkba (hatred of religion). Jameslee I always had at least some respect for, probably not necessarily a bad guy like I'd bet the farm these other leftist ingrates are. "Hey guys! I'm really not bad, you'd like me if you got to know me1! Why can't we all just get along!??!!"