On halo 3 on xbox live, i was playing and i saw a little sign and i cant figure

[Monique]

out what it is for b/c not ... b/c not everyone has it on a couple ppl have it tht i noticed so far. It looks like a power sign:
http://upload.wikimedia.org/wikipedia/commons/thumb/5/58/Power-sign.svg/500px-Power-sign.svg.png
it looks like tht pic on tht page except upside down and bumby things around it

 

[lordvemon]

it is just a power switch sign whose main function is to annoy players to get them figuring out something that has no meaning at all!!!

 

[Adam P]

It is the 7th Column symbol. It means that gamer is a member of Bungie's online forums, I believe.