NCCommish
Footballguy
MOP is an extreme example though more of an outlier.My guess would be the opposite but I could be wrong.My guess is Tim would be a bit different in person from what his online persona seems to suggest.
I happened to be in a redraft league with MOP some years ago and met him in person several times and he was pretty much the same personality as we saw here in his posts (actually his posts in this forum were not as over-the-top as he was in real life for the 3 year period I was acquainted with him).