Hey guys, might aswell have my say on the issue. I think it would be a loss not to have the best known splits on here as well as MKBoards. I'm willing to help out here anyway I can (I would be ready to update the thread on the PP aswell if it goes to that, it wouldn't be that big of an issue).
And to @KingAlex, MKBoards is indeed very similar to mariokartwii.com. People can create their own ideas without much restrictions, which is why some TT tops are very inaccurate and dead in general. A few people in there are willing to keep the most important tops relatively up to date and I feel like it is important to have TT related discussion there, since it is a more active website in general. (Even though some posts may look like they've been written by Roadchill after a wild night out.)
I don't think it will be a problem to keep the 2 threads relatively in sync, no matter who the updater is. For example me and Diamond have been helping each other with the European top 10s and the threads are more or less identical (apart from Barney and Daniel kek)
Also @MattL, found a lot of videos that aren't in here, feel free to check the MKBoards thread and copy them here (there are so many and finding everything took a few hours so won't be posting the links here). I think it might be more simple to just copy the whole thread from there to here