Pretty bad experience with matrix here. Many users have issues with decrypting messages or having some conversations unable to open. Sometimes we have to disable the encryption, and in some case it don’t work either. In all cases, we couldn’t find too old messages. Usually you have to balance between safety and archives; both are unreliable. Migrating a community to a specific protocol is not something you could repeat a lot.

I don’t know if it’s related with the servers, or with the protocol itself. I suspect that things get ugly when your conversations are too big, but it could be the latency between servers, or lack of ressources from server side. If so, you have consider to selfhost a matrix server, or to consider it as not federated, and use the server matrix.org like everyone (which seems to work fine).

I think it both. Not all software or codec provider aim to apply the EU and French laws. Quite the contrary

Judges and Justices are not that precise. They aim to preserved public order before anything else. If a whole industry is based on a questionable interpretation of patent, they is a lot of chances that judges would agree on it. Even in countries where you could not patent algorythm, industries patent the documentation, the “software design”, the brand name, the illustrations used, and aggregates everything together, to say they own it. And it works.

TL;DR : Class Justice

Never forget, never forgive