I do agree women are visibly treated differently, especially in the sense of pervasive weird harassment, like random sexual or hostile comments from dozens/hundreds of users for no reason. The specific issue of crazy stalkers trying to get you fired may also apply to women more frequently, but I'm less sure of that--- 4chan has a history of doing that sort of stuff, mostly to males, and bloggers and website admins who piss people off get it all the time. Both Richard Kyanka of SomethingAwful and Rusty Foster of Kuro5hin have writeups floating around somewhere of some of the harassment they and their families have received due to running popular forums (in rusty's case it more or less caused him to check out).

Not really sure what to do about the stalker problem, since that appears (in this case, at least) to have been a single person, and problems that one-in-a-million people can cause are difficult to stamp out. The pervasive harassment problem, of course, could and should be fixed.