i hate it when someone declares something a megathread before it has a single comment. a thread is not 'mega' until it is a significant source of discussion on it's topic--usually around 100 pages or so
See, now I thought the point of a megathread was to catch all of a bunch of subtopics in one single topic.
Like, instead of a topic for each Pokemon game, we have a Pokemon Megathread.
Instead of topics for each individuals drawings, we have a drawing megathread.
I didn't think they were 'mega' because they were big busy topics, but because they covered lots of little topics.
As a side effect of consolidating discussion on lots of things in one place the megathreads just so happen to get extra big.
So a megathread can be quite small so long as it covers multiple related things.