I wasn't really sure where to link the image, so I picked the link that seems to have the most thorough write-up on the topic. Basically, LiveJournal is mass suspending any LiveJournals and communities that have illegal sexual activities listed in their interests, including incest, pedophilia, lolita, yaoi, and others. LiveJournal appears to not be investigating said journals or communities before they are suspended, as legitimate journals and communities have been victims of this mass banning.
Such journals and communities include people who have been victims of said illegal sexual activities, because they have those activities listed in their interests in an attempt to find others who are victims. Also, many fandom communities have been deleted because they list yaoi, lolita, or others in their interests list, because they are fans of media that include such things in the media, but the fans do not necessarily support the activities themselves. Communities about the novel Lolita have been banned, and I am under the impression that this novel is about a character who discovers that lolita is immoral (correct me if I am wrong).
I find the whole matter saddening and I hope LiveJournal reverses their stance, and restores legitimate accounts to be unbanned.