I'm not sure how combining leaderboards works but I'd be ok with it.
There actually was a discord server, but right now it's sort of just included with a general friends server that myself and other old runners are in. If you'd like, feel free to send me a DM through discord and I'll hook you up with some links. As for new file, tutorial text boxes and npcs are effectively the only reason we start from new file. We've been meaning to do a complete rule re-write since right now it makes no sense, but I've been the only "active" runner of this game for a long time, so nothing has really happened.
I banned Miis temporarily due to doing an impromptu study on sizes and thought Miis would have too much variance. I will lift the ban.
Low% Favorite: 7-3 because of the platform movement or 5-2 because of the cool jumps and bridge strat. Low% Bane of Existence: 7-Airship because it takes 5 minutes to clear, death will kill your run, and I lost a really good run due to Bowser Jr.
It's better to wait the second than to get the tens digits matching [3xx, 122, 411] as time won't be lost from toad. Question was already answered but I don't care.