@delta Funny enough this also happened the other way round to the russian developers of the XABBER Android Jabber/XMPP client receiving a letter from the German @BNetzA due to a similar failure to understand how that app worked:
https://www.cmshs-bloggt.de/tmc/telekommunikationsrecht/bundesnetzagentur-xmpp-entwickler-im-visier/
@asdil12 @BNetzA very interesting even if it's a bit old. The base considerations from this interesting article should still apply. Do you know how the Russian developers responded to this?