It’s about the fact that you HAVE TO trust them to not read your plaintext messages, not see your private photos, whereas Signal is open source (ok both server and client side) and end to end encrypted so you don’t really have to trust anyone.

Thanks! Gotta admit I didn’t check the link, for the lazy like me, it’s basically a torrent file that you download and the site tells you your IP. Neat.

I prefer https://ip.network/, much easier to remember.