Don't worry Signal won't have "ads" just features to helpfully suggest you purchase a coin they've premined 100% of, still own 80% of, and is only traded on one exchange.
A. Embarrassingly, cringey levels of scumbaggery
B. Real convenient for a "nonprofit"
Be careful where you store your keys. Apparently in the US you are now guilty until proven innocent and/or have no right to privacy. In particular the FBI can raid and confiscate any safe deposit boxes they want.
Mark Zuckerberg may be a mediocre sociopath with criminally stupid theories of human interaction that he imposes on 2.6 billion people, but he is an unerring bellwether for policies that will enhance Facebook's monopoly power.
Pay attention whenever Zuck proposes a "solution" to the problems he caused (not just because creating a problem in no way qualifies you to solve that problem) - the only "problem" he wants to solve is, "How do I monopolize all human interaction?"
A monopolist's first preference is always "don't regulate me." But coming in at a close second is "regulate me in ways that only I can comply with, so that no one is allowed to compete with me."
A couple hundred mil for compliance *sounds* like a lot but it's a *bargain* if it excludes future competitors.
That's why Facebook and Youtube flipped and endorsed the EU plan to mandate hundreds of millions of euros' worth of copyright filters in 2019.