I posted about this same topic at this thread when we were still on vBulletin, and basically got a hell no response. However I'm very thankful that maybe a made some dent, as we are now (i believe) able to do this in the classifieds.
I suggest that perhaps there may be a way to request that a mod unlock a thread for editing by the thread owner, i.e. sticky threads, write-ups, or build threads, and that perhaps it could be done on a case by case basis, and for a certain amount of time, i.e. 24 hrs.
So, for example, for the seat swap thread, you could PM BRAAP or someone, and say, her i want to throw in a couple of new entries from car x, y and z, and they could unlock it for 24 hours. That way, next week when someone pisses you off so bad you want to leave the forum, you can no longer take your seat swap thread with you.
Val