There are roles?
On a related note, I was thinking about IRC and someone mentioning how it might seem clique-y to newcomers. I think it can be fairly easy to become part of that group, though. But usually in the beginning, you don't know the new person who joined and don't know the person enough to make jokes surrounding his personality/ preferences and you don't know how well he can handle a joke, for instance. Well, you also don't know if that new guy is just a dick you don't want to know anyways.
I think it's somewhat similar on this forum (if there are clicky clickies). Personally, there have been people I thought seemed interesting to get to know, but that are somewhat "inapproachable". Serious, detached.
And no, normal social rules don't apply if you want to befriend cool people that are not banana peels.
Slightly alcoholy Captain Picard out