Yes, Neen is right - maintenance type threads usually go in the 6 month post op area. If you want to start a specific maintainers thread in there I can make it a sticky for you so it doesnt get lost if you like.
As for creating a whole forum for maintainers, theres only a couple who post and it wouldn't get much traffic at present as people often move on once they have lost their weight, but we could certainly look at a maintainers forum if more maintainers stick around to use it.