Since around the 90s I've seen Spiderman featured as the hero who likes wise-crack jokes, even in the worst of positions. But I look back further and I dont see as much of that. I actually see the opposite, seriousness and being sad. Sure Spiderman is not the Joker, he takes things seriously, but he hads the wise-cracks. Personally, I like them. It makes the comics funny. An example? Him in the New Avengers. He adds humor to them.