I don’t want to keep hammering on it because I’ve expressed my opinion on it already, but I think omnibus threads on “discussions” are a bad trend. A lot of people shy away from them once they hit a certain size because the sense is…this thousand+ post thread is just too much for me to wade into. They also can operate somewhat like fly paper, trapping discussions that might have themselves made interesting threads into the muck of the big omnibus thread.
My opinion is the GOOD examples of topics that make a lot of sense as omnibus threads are things like this: