Most of the designers/writers, etc... are fairly nice people. I admit that's probably in part because when I've met most of them, it's been because I was at a Convention and they were trying to sell. However, that's not always the case. Comic artists and writers sometimes get some weird type of complex let me tell you.
If you want to meet 'em, go to Gen Con. Most of them will be there and they're ready to answer questions.