It was on the official forum.
Prior to the release of Rock in Rio, Bruce had said in some interview that there was no overdubs on Rock in Rio, and some fan pointed out there was on Brave New World as you could see by comparing the TV broadcast to the promo clip of Rock in Rio and the fan then explicitly accused Bruce of lying.
Apparently it had not been an "overdub" per se, but rather Steve copied and pasted a line in the chorus where Bruce hadn't sung to cover up the fans singing. Bruce may not have even been aware that had been done. So Steve released a statement saying he was disgusted that Bruce's integrity had been called in to question and threatened to close down the official forum. I think there may have been some sort of restriction placed on posting or something like that, I don't really remember, maybe Ghost of Cain remembers or anyone else who was around at the time.
EDIT: I think they ended up closing down the General Chat on the forum as punishment