When will they learn? You cannot blindly delete content generated by your own community, especially when a right-winged activist group pressures you into doing so, and expect there not to be outrage. After two high profile censorship cases, I would expect other community leaders to be far more cautious with their approaces, especially Six Apart and LiveJournal, one of the oldest communities around.
If the average LiveJournal user wasn’t an adolescent teen with misguided loyalties then I would expect a mass exodus; after all, this could be years of content that you probably don’t have a copy of, and you could lose it at the drop of a hat. At least with Flickr you probably had a copy yourself.
We now need to keep an eye out, and start backing up all our content we have online that we want to keep. But that’s a topic for another time.