While there is plenty of trash in this forum from him, and many others,
I believe Apollon simply informed the member that Germany does not have full freedom of speech, and that certain ”speech” is prosecutable if the member who lives in Europe happens to travel to Germany.
So it is advise, more than a threat.
I might have read another post, of course,
Meanwhile, our Somalian friend who reported Apollon has at least 4 times published photos of dead Ukrainan soldiers, gloating about it.
Reported and posts removed, but no sign of a ban.
His continuous calling Ukrainans == Nazis is distasteful.
I would ask him to edit all old posts and remove such references.