[JackCh]

Conversely Patreon gives you a low signal:noise forum away from the din of the youtube comment section. This is something both users and creators enjoy. Many creators I'm subscribed to have reported that their patreon discussions are more fruitful and interesting because only serious people are taking part. They don't have to filter out, even visually, the rabble from the informed and passionate. Youtube can highlight member comments in some attempt to replicate this, but I think being off-site is part of the value here.

As for discoverability, you discover patreon accounts by viewing the videos of creators on youtube. Unless youtube starts banning links to Patreon (this would be evil, but I wouldn't put it past them), there isn't a discoverability problem.