Call them out on it. Criticize that decision. For lack of better words, complain. I love reading the well thought out long posts here, but everyone needs to understand, its not like 343 stops at those, reads them, and takes them into consideration. They look at a broad sense of feedback. If one person writes out a long ass post detailing why the boltshot is fine the way it is, and 50 people keep saying "Boltshot sucks, nerf the boltshot, its cheap, fuck the boltshot" They're going to probably nerf the boltshot, or at least look into it.
This is the mentality I hate to see around here. Thankfully it seems to be in a minority on HaloGAF. If you don't like an aspect of the game, PLEASE say so. Don't just say "Oh well, game is out, nothing we can do, just take it." I'm not saying to be CONSTANTLY negative all the time, but don't just sit there and let decisions you think are bad go uncontested. That gives 343 the idea that everyone is cool with it.