I like the search bar idea and the "main username" idea. I like the one about not allowing two names from the same computer to prevent reregistering as well, but I can see a problem with that: if somebody has forgotten their password, then unless there is another computer at somebody's house nearby, they're screwed. I had it happen to me two weeks after registering for the first time on this site. If I hadn't reregistered to get my old account back, I probably wouldn't be on this site today.
A suggestion I have, though, is a new thread, "Intermediate SMW Hacking." This would bridge the gap between N00b or Basic SMW Hacking and Advanced SMW Hacking, so people could ask questions in between "zomg how do u make a secondery exit" and "My custom boss glitches up on the 14th animation frame. My tilemap is dcb $28, $2A, $48, $4A, and I have a JSR to the secondary spawning routine that is based on the binary input of the 51st byte in...". This thread would probably be centered around people who are pretty familiar with Lunar Magic itself, and are decent with a couple other programs, but still run into occasional difficulties. For instance, someone might know how to use Addmusic, but one particular song isn't working, and they don't know why. Or they might know how to insert custom sprites, but there are a few sprites that aren't behaving like they're supposed to. Maybe somebody even wants to remap a custom sprite's graphics, but can't quite figure it out. I think a thread like this might be useful. It's a possibility, anyway.
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I'm working on a hack! Check it out
here. Progress: 64/95 levels.