Anecdotal evidence, but many of us here on HN don't (1).

I went to one of the most backwards and messed-up schools here, a Christian Brothers all-male, catholic priest-taight school... in the 1990s! (it has since reformed and is now mixed-gender)

Stories of bullying often end up with lots of comments here:

http://news.ycombinator.com/item?id=709733

http://news.ycombinator.com/item?id=1771483

http://news.ycombinator.com/item?id=1764236