@light I appreciate your research, I didn't read the post carefully, though. The author uses very aggressive language and I don't think I'm educated enough to get all their points. I get that this could be an issue, but then again, signal is open-source and driven by a non-profit. I get that there's a threat, but it's basically non-existent imo and I'm okay with that. With using signal I'm at least not completely isolating myself, due to the growing popularity in Germany. Thanks though!