Maybe it helps if you don't divorce yourself from the circumstances. They put the camera there specifically because the guy is gay, and as a couple of college Normals, they wanted to broadcast his hilarious homosexual escapades to the world. On what planet is this not bullying behavior? They are trying to denigrate someone they feel is "lower" than them.
You won't find much behavior that is more emotionally and psychologically damaging to a person - this should be somewhat clear given that the guy killed himself as a result.
No, I'm sure they broadcast their male roommate over the Internet having sex with a guy - complete with an "I saw him making out with a dude again, come on, come all" invitation tweet - due to their deep tolerance for homosexuals.