One of the co-founders, Brian Acton, has funded most of Signal (~100M USD) in his post WhapsApp life. It is a very hacker mindset solution. Instead of turning to the law to enforce nebulous claims against a megacorp, make a better product with the money you got from said megacorp.
I know "nothing to hide" is never a strong argument but even if Signal is a CIA honeypot, if it keeps my personal conversations from becoming marketing fodder, sign me up!
I'm definitely not a "nothing to hide" guy, but if the CIA wants something on me they're going to find it in 5 minutes. They would only be using a backdoored Signal to get the smart guys; so I guess I have to thank the smart guys for the CIA giving us Signal...
