Usually people are so unoriginal they can't find anything else than overused names
adding smilies or letters is usually a hint of massive fail ( yes i'm hypocritical )
and then there's the _ _ _ _BR people *sigh*
I prefer clean, un-used names that don't come from an anime :/
the inMeMoRyOf bla bla usually implies that person has been banned before and restarted, or his buddy got banned.