How about no. Do I really need to explain that if we ban people for losing in events, then nobody will want to take part in them. And there's more to a ban than a laugh.
I love the suggestion of an official fun mods server which changes to a different fun mod each day/week/whatever. I think that spirit wrestling was a good mod. If you want a good silly but skilful mod I would advise wonderskates because it looks cool and isn't too easy. I think that mods like acrojousting are better than normal jousting.
That is about it. Sorry if these suggestions are random/stupid.
