The challenge maps all have an IGT field, and you can sort by that.
Mods can easily add categories. That's not an issue. The only thing is that there needs to be a good way of tracking it.
Go for it. The main issue is that I'm not sure if 100% is well-defined, and I don't think there is a good way of tracking it for verification purposes.
What's wrong with the status quo, where you can specify "Glitchless" or "Glitched" as the type?
Mechanically, the glitch works the same way as money glitching, so if money glitching is allowed (which it is), then there isn't a principled reason for the NG+ glitch to not be allowed.
It's in the remastered version: https://www.speedrun.com/gtasa_remastered#Any
Do something similar to what this submission did: https://www.speedrun.com/multiarkham/run/yj50ewom
You can keep the videos separate, but make sure there is something covering the streaming gaps. In that submission, the runner videotaped himself switching games, which made it possible to retime.
I had that happen because I didn't copy over the files in the "Crack" folder. If you copy those over, it should work fine.
Someone made an Any% TAS a while ago:
Should be useful for strats.
You can go to your pending runs and update them.
There is a route tracker in the resources section that documents the route.
You need to scan a lot of riddles, pick up all the interview tapes, and you need to scan the Arkham chronicles as well. I think that’s basically a watered down version of 100%. I don’t see a point in it.