I only wish Moxie was less polarizing and actually stepped down from being its face. He often makes subpar and inaccurate statements about other technologies. He is famous for his derogatory comments about PGP. His talk at recent CCC was anything but dismissive of others.
The thing is, Signal is not special. Matrix, Wire and others sorted problems of encryption while remaining open (Wire is commercial but that good for some).
So congratulations Signal. But we should think really hard whether we want another centralized behemoth. I would prefer donate to Matrix. Support project building client with great UX for masses on top of open, extensible protocol rather than hand over more control to centralized organization led by individual speaking in absolutes.