You want to get my attention? Tell me you're looking for a professional, and you're going to treat me like one. I want to know that I get 8 hours a week to work on opensource. I want to know that you're looking for craftsman, not ego maniacs. Mostly, I want to know that I'm not working with a group of people that saw the word rockstar and thought to themselves "Oh, rockstars huh? That's totally describing me."
Also, please please please don't tell me you have funding from a "Top Tier" VC. It's a sure fire way to convince me that you care more about your ego than running a successful company. Who the fuck cares who funded you? I don't care who, I only care that you're going to be around for a long time. And, you're going to consider anyone that gives you a ton of money to be "Top Tier", so it's completely meaningless anyway.