What was changed recently in this department ? I know the timeout was increased, but I used to be able to work around the "expired link" message by going back to the "Add Comment" form and refreshing the page. Now this also yields "expired link" and destroys the post text in the process ! I just lost good 30+ minutes of typing, and I ain't going to re-type it, so it is everyone loss .. :)
Please do something about this, it was a minor annoyance before, but now it turned into a pretty major headache.
Also, the 'Preview' button would be very nice to have. I know there's a delay setting, but that's not it. I want an ability to privately preview what I've wrote, before posting anything.