Starting tomorrow, LJ will begin purging deleted accounts. So, all those names that say "this account will be deleted in 30 days" but haven't been in years...will finally be going away.
If you know people who have deleted accounts that they reactivate from time to time or something...better let them know. It may not be there for them to come back to. I don't know where they will start, or what the criteria will be, or what. Fair warning!