OBS is by far the most common recording software to use. However, there are a lot of good recording softwares that are free. I use the windows game bar, some people use streamlabs, and some people use another software (I can't think of very many off the top of my head).
Another alternative is to use a phone camera pointed at your screen. This is acceptable video proof.
delete this guy's account https://www.speedrun.com/largelowerareaman456/allposts
@josephyossi this thread is about the best reaction someone had after getting a world record
anyways, i never posted videos in my previous posts so here are my favorite popoffs (volume warning)
Both moderators have logged into the site very recently. Message them and ask why your runs were rejected. You can also check the rejection message to see if it's explained there. Make sure that you've read the rules for each category as well.
Edit: if blue is the default category and yellow/green are subcategories, the run will automatically default to blue. When you submit a run, change the category manually before filling out the rest of the form
You can delete runs, but only if your account is a week old. There is no "humiliation" though, moderators will fix the time before verifying it and everybody makes mistakes.