Why? Can you please elaborate more. I recently started using Signal and like it very much. It seems that more and more of my contacts are also starting to use Signal.
They've been doing some weird stuff recently. Like this stunt and the reverse-hack thing, and they also run a cryptocurrency now. That last point alone is a huge red flag for me.
Frankly stunts like this are comforting. If Moxie had been bought, I'd expect a much more subtle hand.
He's running a cryptocurrency, doesn't need to be bought.
The "reverse-hack-thing" is a big trustworthyness bonus.