I'm a mostly reformed /.er, and I started there before the 2000 recession. So FWIW...
Imagine all those asshole 13 year olds playing Modern Warfare online, trash-talking over the mike.
Now imagine they're in their 30's or 40's and haven't changed, other than maybe not being in Mom's basement anymore.
That's 60% of the /. crowd.
But the rest of them are surprisingly good peeps!