I don't want to brag, but I contact companies all the time. Sorry to make it seem like what you do in your spare time isn't cool.
Much of this is for my site, which is usually bothering companies about various cereal-related questions.
But one company I do bother a lot is Good Humor. And since the CM Punk thing, their boiler plate response has gone from "That you for your interest, we will pass along your comments" to "Thank you for your interest - due to a heavy response regarding this product, we are evaluating our product assortment..."
So, I never want to get my hopes up, but right now things are looking better than they did a year ago.