As of this moment, Battle Dawn is still leading in the post-count on separate threads on this forum. for good reason. I am also bringing that up because an opportunity to shoot a Supermechs thread up to most-posted on, if anyone manages to catch it.
Red rectangle - off-topic
Green rectangle - Battle Dawn
Blue rectangle - Super Mechs
(3 of the threads in the off-topic category can be categorized as Battle Dawn, technically)
The way Battle Dawn is able to do it is because they have ongoing topics. (Biggest BD thread was the E4 thread. It was a big event in which most players participated. That's not why it became big. it became big because of controversy over some things that were done by some people that made a lot of people salty. 2nd biggest is E3, in which some crazy things happened as well. And Battle Dawn eras go on for awhile.) In Super Mechs there is no such thing as interesting events or anything going on for a long time. That is where this new idea for a GOAT tournament comes in. If all the announcements of who won and everything that is going on with it, is reported on the forum, that will keep it going. (possibly make a couple double-elimination tourneys or something alongside the main tournament).
side note: The 2 biggest threads on the forum are still mine.