Based on the phone-home stats in Synapse there's around 300K DAU currently on the network, but this is a major underestimate given other stats which suggest only about 30% of public servers enable phone-home.
I want to test this claim. After an hour of google searching I'm none the wiser:
1. Can I bridge private messages, or just MUCs? I use XMPP only to keep in contact with friends that use XMPP. I would love to integrate them into a single client, but afaict it does not appear possible.
2. Do I have to run my own XMPP bridge, or is there some automatic integration service I'm completely missing? For comparison, the experience of bridging a matrix room to IRC was as easy as clicking "add new bridge" in the Element UI.
Does Matrix support OMEMO for e2e encryption?
(Although the bifrost bridge doesn't currently implement E2EE - and it would have to reencrypt anyway to turn the Matrix event payloads into XMPP stanzas and vice versa)