notanan2
It's a game show not church!
You're supposed to want to win and get excited when you do!
I can't speak for anyone else here, but I don't object in the slightest to contestants getting excited and clapping when they win, or do it spontaneously at any point where it seems justified.
However, I do find it both odd and uncomfortable when, for instance, having just finished one of their 'goes' in the middle of the game, the host having said 'well done' (even if they didn't), they then join in when audience claps them for their effort.
I don't feel like that when they all clap with the audience at the end of a round, because they can be clapping their fellow contestants at that point.
I am picturing Pointless here. Quite often, I notice that the contestants in question look quite reluctant / awkward doing this (but only a tiny number don't do it), so I go along with the theory that they are not doing it through choice.