I don't feel negative towards Prosody, Prosody is an awesome project.

My criticism is about XMPP in general and its ecosystem.

I stopped my XMPP server a few years ago, Dino was still in its infancy. It's good to see that the client is reaching some maturity but then, looking at the supported XEPs I can see that MAM is not supported for group chats:

- https://github.com/dino/dino/wiki/Supported-XEPs

Fortunately Matrix and the respective clients have been evolving quite well, so I don't see the need of going back to XMPP.