Personally I wish they let Gino Odjick keep #66 after his rookie year. It would have made a great "deal with it" gif.
I have a feeling the Flames heard from the league about Brody as the Canucks allegedly did in 91. It would make more sense back then though, when Mario was such a heavily marketed player. I don't see a move being made to retire #66 in the entire league though, that opens up a can of worms of retroactively honouring other players. Mario wore an uncommon number so it's not too tricky, but couldn't one argue if Mario deserves the honour, 4 and 9 should be retired too.
Sometimes wearing the number of an old icon is a tribute. If somebody wants to channel Super Mario when they play, I say let them.
I hate this thing that it would be some sort of hockey sin that someone would wear 66 (or 99 if that wasn't league wide retired).We always want the player with personality but don't want the cocky kid who thinks he's hot stuff or that he's even just honoring one of his hockey heroes but can't because its off limits for some reason. I don't get it. Basketball players wear Michael Jordan, Magic Johnson or Larry Bird's number. Its not a disrespect thing its a sign of respect. Better then the number fading away because no one wears it. Hell 99 isn't up in alot of arenas but you see someone wearing 99 and people will talk to the kids saying why he's wearing it.