When LiveJournal Inc. laid off ten people recently, there was much wailing and gnashing of teeth -- once again, the End of LJ was imminent! (Just like it was when it was bought by 6A and SUP and when 'Strikethrough' happened...)
Of course you need to keep a backed-up copy of your Journal somewhere (just because!), but if you feel trapped at LJ, you can now use
Google's Blog Converter to migrate from one blog-system to the other!