Deactivating the button after first click was my first thought too. But that would be really annoying if Launchpad really *had* timed out without registering your report (oh, someone's downloading from Rosetta!), and you were sitting there with a carefully filled out page and no way of submitting it.
Deactivating the button after first click was my first thought too. But that would be really annoying if Launchpad really *had* timed out without registering your report (oh, someone's downloading from Rosetta!), and you were sitting there with a carefully filled out page and no way of submitting it.