Those who were scandalised by @element selling encrypted @matrix communications services to cops, and suggesting XMPP as a replacement, you might be interested to know that...
"Conversations_im seems to be doing its job at the German Federal Police."
I totally understand the antipathy to the cops, believe me. I've been manhandled by them a fair few times, and people I know have had bones broken by them. Here's a video of one occasion when that happened:
https://youtube.com/watch?v=H2yA2cKfvzA
(apologies for the ThemTube link, Goggle appear to be successfully blocking all Piped and Invidious instances right now. Also youtube.dl, so I can't even download the video and put it up on PeerTube. If anyone can manage that...)
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