In this post: https://ask.vrchat.com/t/questions-about-the-new-developer-update/10470
Tupper said this.
A lot of the methods mods used were pretty destructive, so we want to be careful. Also, for obvious licensing concerns (some were MIT, but others were under more restrictive licenses) we can’t look at their code or even their methodology.
We’re looking into every avatar crasher that we have on file (and oh boy do we have a lot). We also have very good working knowledge of the ways people crash other people. We’ve got a method we can’t talk about yet (and, honestly, we may never talk about too much, sorry) that’s far more effective than how modifications ever did it, but it’ll take a bit longer.
It’s clear the team is looking into these things. As with all things, patience will be rewarded.