InsaneJournal Announcements

I have a question about the "comment rot" issue. Since I do ALL of my roleplaying in threads and comments, I have a LOT of writing that I don't want to lose. Am I to understand that there is a very good chance my writing could disappear weeks or even months from now without a trace, never to be seen again with no way to recover it? That makes me very cautious about wanting to do any writing at all here, if everything I've written can just disappear that easily.