I waited a few days for the deletion storm to pass and attention to wander, then as quickly as I could I restored the history and trimmed out the advertising speak myself. The article has sat completely unmolested since then, apparently a perfectly fine article on a perfectly fine subject. It took me _four minutes_ to fix it up nicely according to the timestamps. There must be umpteen thousands of such articles sitting in the deleted versions bin, probably never to be rescued. It's very disheartening.