For me it was the wargaming nerds looking down on the CCG nerds originally. Warhammer was fine, we were the cool nerds (lol). Magic The Gathering was not. Hell, even the anime nerds were better than the Magic nerds.

Then it was the “virtually anything else but…” nerds looking down on the Starcraft clan. No one liked them, even if we played Starcraft too. Forming a school clan was just, death to anything else.