SG is hardly the first site to take down content.
And by the way SG is not owned by a woman or "progressive" in any way. It's all just smoke and mirrors, the owner is a right wing Bush-votin' racist zealot who verbally berates models into tears, and uses lawsuits against other punk porn sites and forces them into signing non-compete agreements. I could go on and on, but they are basically one of the most unethical companies in adult, ripped off tons of other adult webmasters who helped them start their site, and pay their models in spare change while bringing in tons themselves. (I mean that literally, the models earn *pennies* an hour, as the new hopefuls scramble and beg and plead for the chance to be cool enough to be on the site.)
About 30 models have left this month because they were tired of being treated like shit, or spoke out in defense of models who were kicked off. Many many of their models have left in protest of the company's "real self" over the years, but the last month has seen some serious upheaval in regards to models talking about the shit they went through, and possibly violating confidentiality agreements and risking civil suits. It's a group of women who are mad as hell, and not going to take it any more.
There's a group on LJ devoted to SG-oriented chat. Some it is is stupid drama, but it's worth reading for anyone with any illusions about "the pink site":
http://www.livejournal.com/community/sgirls/