Over the last few days, I have sometimes got a duplicate post error when using quick reply. I have clicked once on submit, the post takes longer than usual to go up, but just before goes up, I get an error saying that "This is a duplicate post of one you made in the last five minutes". I assume this relates to an upgrade - a useful feature but appears to be slightly sensitive.
"For to be free is not merely to cast off one's chains, but to live in a way that respects and enhances the freedom of others." - Nelson Mandela