Thanks for all the feedback so far; it's made a big a difference for us. Not just with features and bugs but with motivation too.
We have a special free plan for people coming from Hacker News:
You can check out the source code https://github.com/hellonoam/cryptopad though I should probably update the readme with more info.
By the way, I'm getting a warning about your SSL cert in Chrome. Firefox was fine though but it could be b/c of an inconsistent server configuration:
I do not like storing my passwords etc with a third party.
If they spam report the report tries to view the link but sees it is no longer there.
Not saying specifically with your service, but a spammer could setup something of his own like this and when a link is viewed a second time they could put up a fake this page has been reported for spamming etc.
Also the content in the secrets in served as plain text so that diminishes the quality of the payload too (the recipient would have to copy & paste the URI).
Edit: by the way, Mandatum, not sure why from your few comments but you're hellbanned so they come up dead.
Of course, it's not SSL, but the source is available online and you could create your own implementation using SSL (as I have).
We've all seen these: http://plaintextoffenders.com/
Also available at https://tmwsd.ws
I use contextual GPG for pastebin all the time.
It's a lot to ask for someone to copy and paste a GPG encrypted message when you just want to send a private link to a (non-technical) client or when you just don't want something in my facebook message history.
Yours looks really nice.
If you google "SSL cert" and click Godaddy's ad, you can get one for $13/year (instead of $50+). Namecheap has good deals too.