Yep. Right now I just override any message securely. I was thinking of doing something like having all the messages in memory and just wipe the memory there, but the problem with that approach is I can't tell people if it expired and thus you can't see if people eavesdrop.

Woa https://paste.sh is awesome. I love it. Super minimalistic. I wouldn't use it for sharing passwords, but using it for sharing notes and permanent things could be pretty nice. Right now I use Google Docs and hackmd, but they are not encrypting stuff. How does it work with multiple users online?