The comment was a bit snarky (and perhaps paranoid), which is unusual for me.

Back to the tinfoil hats, do you believe communications on Signal can't be accessed by anyone except the two recipients? And why do you believe that?

Admittedly my position comes from a more ignorant place - that surveillance seems to be top priority for government agencies, and our governments decreasingly serve the wellbeing of the people. Pretty shallow I admit, but I can't actually believe that the most popular, privacy-centric chat platform isn't accessible by other parties. That would be absurd wouldn't it? Especially with government-mandated backdoors in everything.