I think it probably has been getting more attention in the particular area of popular culture which a lot of us orbit. Not the same websites, necessarily, but ones we are all aware of or which serve the same purpose. A lot of the backlash is really disgusting, but maybe it isn't a bad thing that it is being unearthed. Like you know, excreting the deep set toxins, puss and gunk through exercise - on a group level; some people can't be helped, but others can. These places aren't hubs of social progress, but maybe there's something to be said for individuals who are intelligent entering into those places with some good information and a better read perspective.
I don't know why, but maybe it's got something to do with more women becoming involved in the kinds of subcultures that men used to be predominant in, like video games or just obsessive pop culture stuff in general - tv shows, etc. So then the dissenting opinions get raised more often than they would have before, the issue is raised rather than remaining unaddressed, and suddenly the treehouse isn't as forgiving. I don't know if this is right - it seems really complicated and impossible to make some glib generalization about it like 'oh, it's the internet that did it' without having some information at hand but it sounds like an interesting topic worth looking into. This doesn't seem to have escalated into a mainstream thing yet, if it will, but yes it does seem like something is happening and while it isn't fun I think it is probably going to be a good thing.