I think they're more for "I was able to do this and here's the proof" (and to enlarge your e-[censored]). Also, you realize that the only people that will see your gamerscore or trophies are other gamers. Unless you haven't actually grown out of "look at my points!" and turn your system on just to show people them. :confused:
Edit: Oh that censor is just sad.
Yeah, they censor everything, watch this, if I say...
I-n _ S-o-v-i-e-t _ R-u-s-s-i-a ...
and without the dashes...
I am not funny
It'll say I'm not funny, even though it's correct in the assumption. :thumbsup: