I play 90% gold games, and my policy is to always start votekick on players with no gear on. I write this because I'm tired of people calling me an ahole for doing it!! Here's my reasoning : To me, its a harbinger of things to come, and they are :
1. the game will be longer than the average 20 mins it takes. (the #1 unnecessary pet peeve of them all)
2. this player is an obvious credit leecher (he's not even trying to hide it)
3. this player will likely not use medi-gel (hoarding consumables)
4. this player will likely quit because they have nothing vested in the game.
5. if there are enough of them, i might end up solo'n the match, and or running around trying to revive them. (extension of #1)
6. these players are revealing themselves as the guy\girl in society that nobody likes.
IMO, there is no reason to NOT have gear on. Level 1 gear is better than NO gear. And I know some of you will say "well what if they're noobs"... then they should be paying their dues in silver\bronze like we all once did! crazy idea right? 
I do not mind carrying at all- I just dislike it when people think they pulled one over on me.
A story related to this- I was playing a game once with some guy who had no equipment on. During the game, he kept dying over and over, and I noticed that he wasnt using his gel. This was how the conversation went.
Me: Why aren't you using medi-gel?
Guy: Because I'm out of gel.
Me: It's wave 1.
Guy: No I mean I don't have any gel.
Me: (pause) You went into this game with no gel?
Guy: Yeah.
Me: Why not just buy it like everyone else?
Guy: (pause) (pause) (pause) Because **** you thats why.
Me: Trust me on this... everyone at your job hates you.