Back when the Signal org used to be called Open Whisper Systems it received grants and auditing from the Open Technology Fund which, at the time, was still a part of Radio Free Asia.
https://web.archive.org/web/20150521181458/https://www.opentechfund.org/project/open-whisper-systems
People are free to draw their own conclusions from it. Do you have anything material to contribute, or will you just be putting more smarmy words in my mouth from here on out?