Maybe this is a bit nitpicky, but Snowden himself does offer Signal to people [1] and is listed on the Signal homepage as "using Signal every day" [2]. [1]:h

Maybe this is a bit nitpicky, but Snowden himself does offer Signal to people [1] and is listed on the Signal homepage as "using Signal every day" [2]. [1]:https://twitter.com/Snowden/status/986277159252750336?s=20 [2]:https://signal.org