On the subject of retcons generally, I don't tend to like them. That said, I had absolutely no problem with one of the most controversial retcons -- having had Gwen Stacy have sex with Norman Osborn and give birth to twins. I've given my reasons for liking that particular retcon a number of times in the forum, so I won't bother again...and besides, I feel confident that, after years of debating, I've finally persuaded coke & comics that I was right about it all along. So, no need to rub his nose in it again. ;)

But another Spidey retcon that I liked a lot was the revelation, in the Parallel Lives graphic novel, that Mary Jane Watson had known that Peter Parker was Spider-Man all along because she saw him crawl out of his bedroom window in full Spidey garb the night that his Uncle Ben was murdered. Personally, I felt that retcon -- while not really necessary at all -- neatly explained why an absolutely stunning babe like MJ would've ever been even remotely interested in a dorky loser like Peter in the first place.