is this the part where you could get a new randomly picked video/screenshot/stage each day, and only play it for that day? that's not too big a deal really, there's youtube and sites dedicated to sharing levels that work a lot better in my opinion.
No big deal. There are sites that allow you to download custom levels. I always use them whenever I play it though. Still, I find the object limit to be total BS.
This has nothing to do with lack of users, the Homebrew community found an exploit in Brawl using the stage creator.
i dunno if you ever heard of the twilight hack, but a similar exploit was found in brawl using the stage builder. nintendo announced that it was going to be pulling it the very same day as the exploit made its way to the internet. i doubt it's a coincidence. someone could very well upload the hacked exploit stage, which could then be sent out to everyone via the download service.