Re: The lack of smack is interesting...
Denver is probably because they have the same "Circle the wagons and protect your own" mentality we do as fans. Not much respect from the media or opposing fans all year means you spend all your time just defending your own team.
The Colts had a few smack talkers (remember, ICH originally showed up here as a Colts troll, until we found out he was just a fan of whatever team was winning), but they weren't very good. I don't know what their deal was.
The Bungals had their own built-in base of posters, and that's an easy one. They are so out of practice at winning, they simply didn't know how to do it.