It's not a false claim. I stated an opinion. It's not even that controversial, it's a very common complaint about signal. The primary value in open source is it

It's not a false claim. I stated an opinion. It's not even that controversial, it's a very common complaint about signal. The primary value in open source is it gives control over the code to the user. Signal releases their code, but actively prevents it's user from actually getting any benefit from it. A messenger that exists but you can't use to communicate with anyone has no value over a messenger that doesn't exist. A signal client that you can modify but then can't use to communicate with anyone else has the same issue. The protocol should be considered 'open source'. But for an encryption system, that's the bare minimum so it's not that impressive.