I think its a bit unfair to be so dismissive of the people spewing bile on the internet at you. An angry thread, yeah thats nothing. A few THOUSAND posts its much worse.
And things go WAY WAY beyond that for a lot of these people who are being harassed. Several of the women who criticized the industry get Tons emails, calls, threats. Especially since these vile people like to start posting your real name, address, phone numbers, the names of your kids, spouse, families. Things get way worse then just some mean messages for a lot of these people.
People need to get past the idea that the internet is this little thing you can just walk away from if you don't like it. The internet gives every creepy angry person you avoid in real life a voice and crowds of people egging them on. And its very easy for it to them use the information on the internet to effect you in real life.