I am going to move this over here because I don't want the Smash 3C thread being further derailed. For Pit, I was mainly talking about dickbutt and the stage, since I didn't have anything to do with uploading him. There are still problems I have with the site, but I generally haven't brought them up because I don't think it's my place to say, and I'm not a web designer. I have been a part of several modding communities, though, especially Bethesda games and Brawl modding, and I find Nexus and KC-MM still more intuitive and pleasant to use.
Both Nexus and KC-MM have categories you can easily view; this makes sense especially for nexus when there's a wide variety of mods you can find, but even a Brawl mods website should have a basic way to view all characters, all stages, or other types of files. Within those categories, you can also organize them by most downloads, endorsements, recently updated, newest, etc. All of that is missing as far as I can tell from Modulous. I do appreciate that you listened to people asking for the character view, but there's still no 'all characters,' view, and for that matter the Random button sends me to a page with an astonishing amount of anime girls
http://modulous.net/c/ I feel that the Brawl and PM differentation is redundant, personally, but the fact that you can add sections for Roy and Mewtwo, for me, is an advantage over KC-MM's setup.
I also feel that there is too much space being used up by fluff when I navigate the site. The front page has too much redundancy, with the same mod being shown 2-4 times. Popular and Featured seem to be the same thing, as are Newest and Recently Updated (I am aware of the difference in all of these, but they're effectively pretty much the same in practice. You might want to think about doing something similar to Nexus for your featured section, which gives mods that have recently gotten popular 2 weeks on the front page. Aside from that, damn near half the page is used up by oversized fluff. I shouldn't have to scroll down for a while to get past that features section.