"Can we ban players that taunt with champs?"

.........really? What is up with this victim mentality? Everybody wants big brother Riot to solve all their problems.

The day we can get banned for using dance moves, jokes, laughs is the day I'm done with this game.

Put on your big girl panties, and when the enemy taunts with jokes laughs and dance moves, you better either taunt back with your own moves or destroy them in lane.

You can still taunt to throw them off their game as long as you're not verbally abusing anyone.