Maybe I came off as dismissive or just stupid, but I really did mean to be helpful. Of course you don’t want users experience bad interactions. I meant if those interactions were for an actual intended reason. So yeah, never mind.

Bummer you’ve had a hard time. I think they and the free software community are trying to put together a good solution.

What server are you using and with which client most recently? It sounds like your device is unverified so untrusted or the key isn’t present.

To expand, “unable to decrypt” would affect a lot of users. That’s a good thing and exactly what you want it to do when not correctly trusted.

I use it all the time. There are many mature clients, and matrix is a protocol, so I don’t know what you mean. Since the sliding sync implementations, I have found it really nice to use.