You can just use the filter list in your current ad blocker and avoid an additional extension all together. I’ve had BPC as a list in Adguard for ages, and it works flawlessly.

Thereby surrendering your anonymity and negating any reason to use the app over mainstream alternatives.

Simple answer to the question so far as I can see: in order to connect with someone, you have to video conference with them and show them a code. So the anonymity is only as anonymous as the video conference you use to do that. All of the benefits it claims are merely an illusion.