Modded version of youtube app that let's you kill all the ads, among many other wonderful features. However, every 6 months or so, youtube does something where the videos stop loading effectively killing the app. I usually switch between vanced and revanced every 6 or so months because one has so far always worked when the other gets the axe. By the time that one goes down, the other one is back up and running.
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.
The docker thing really grinds my gears. I see it as the ultimate "works on my machine" mentality. Basically they can't be arsed to write software that is robust to changes in hosting platform.
I have dealt with "only works in kubernetes" because developers couldn't be bothered to make it even work on docker without all the hidden orchestration.
So, instead of documentation, they just make the service work in that one specific environment.
The Gagguino project is a counterpoint to this. They have some extremely limited documentation, but to really build one you probably are going to need to dig into Discord. I hate it. The project is really cool, though, and I'm building one right now.