Please take a look at https://drewdevault.com/2018/08/08/Signal.html and tell me if you continue to believe that forking/replicating Signal to make it decentralized would be the same amount of work as improving the UX of a Matrix client.

I read it, but I suspect that am fundamentally uninterested in (or not as interested in) the values that you share with the blog author. And you haven't ceded an inch on "centralized services are useless" so I have no motivation to continue this conversation.

Sorry, I have been in many different threads with different people and I don't think ever said "centralized services are useless", have I?

What you will usually read from me is that centralized services restrict our freedom, concentrate too much power in one single entity and are not worth the convenience.

That’s the equivalent of saying, “new thread, who dis?” I know what you said, the problem is that you’re not interested in hearing what others say. Especially regarding your bias of deeming centralized services “not worth the convenience” despite popular consensus voting otherwise via installations and usage. By all means hold to your view - you just have to do a better job of convincing others of it.