I was the admin who deleted the Brian Peppers article after the first AFD (then VFD). I have looked at the two versions, both the one I deleted and the one Jimbo Wales deleted. They are not "substantially identical".
The version which was AFDed back in June was a silly fake newspaper type report, which was just disgusting. The last version was more neutral, and looked a bit like an encyclopedia article.
Sorry Jimbo, but I don't agree that deleting it was an in process application of G4. Nonetheless, it is your prerogative to make such decisions, and I also agree that we probably should not have an article on the subject. If I had voted in any of the AFDs it would probably have been to "delete".
Sjakkalle