So I just wanted to file a SourceForge.net support request. I am using the tracker beta, so I was using <https://sourceforge.net/tracker2/?func=add&group_id=1&atid=200001>. *LUCKILY* out of paranoia, I had copied the whole description text I wrote before submitting.
Because when I pressed submit, I was lead to a page telling me: "Error, no group_id specified". True enough, I didn't select a "Group" when submitting the bug, I thought this is for you guys to set, not for me.
The problem: When using "back" in my browser (Firefox 3 on OS X), all data I had entered was *gone*. As I mentioned it, luckily I had copied it, because by now I am used to this terrible behavior. :-( Truth be told, it is much better now on project support trackers, where this bug seems to be fixed (yay!), but the SF.net tracker seems to be a bit different than others...
I believe that many bugs get never get reported, because when a user tries to report it and submits the bug report form, after entering a nice elaborate description, the whole text is lost due to this bug, and the user, who is already annoyed about another bug, won't go into the trouble of reentering it all. A loss to all involved parties :-(.