On my todo list was: make s3nt timestamps based on milliseconds instead of seconds

And I didn't do it. What happened was that two people posted a link at the same second, and it wasn't returning the right latest row and therefore the new hash for the short link had already been used by the real latest link.

This has been fixed. I wish I had been notified by someone because it was that way for a couple days…

The site itself is simple to explain: there is a big textbox, post whatever you want in it. That message is sent to 10+ social networks using accounts set up for Pongonymous (pong-on-amous). A good way to get your griefs out about something web2o-style. Visit the page here, and there is the project page over here.