My neighbors earn between 13K and 15K for a family of 4. They get about $250 in food stamps per month. I'm sure it varies from state to state, from situation to situation, but I can't imagine how little a family needs to earn to have more food stamp cash than an average family spends on groceries. I might find it frustrating considering my own financial limitations, but I don't begrudge others some help.
I've never met anyone from the "other half" of families, except when I was hitchhiking and homeless by choice, and meeting people who were barely functional. Those people were indeed milking the system--but we are talking about a system that is tiny compared to other federal and state budgets. I just happens to be the most visible in-your-face budget. I honestly have never met those families who weren't grateful for the help they receive.
But regardless, I don't why receiving assistance automatically removes your right to complain about it at all.