I am glad this person realizes this in a post.

I have seen this movement since 2 years ago and is really annoying.

The only thing I could do was trying to promote Matrix (in some case they didn’t even know that it existed) and help them to bridge rooms as the only solution acceptable for them.

Perceptive readers might have noticed that most of these arguments can be generalized. This article is much the same if we replace “Discord” with “GitHub”, for instance, or “Twitter” or “YouTube”. If your project depends on proprietary infrastructure, I want you to have a serious discussion with your collaborators about why. What do your choices mean for the long-term success of your project and the ecosystem in which it resides? Are you making smart investments, or just using tools which are popular or that you’re already used to?