Revanced was one. Good thing they wisen up and have documentations now, though it's just a set of .md files in their git repo.

To be fair, I could say the same, but is probably a biased sample.

I have other red flags, like only distributing on docker, that I've tried, and tried again, and found that it's a sign of a badly run project. But I can't state any confidence on the discord based rule, because I've never tried to make any run.