Find the most connected user you know to hunt your product.. that's the critical difference. Also, engage with any comments instantly (ie don't check in a couple of times a day for the first day.. And engage with meaningful responses. Don't do what some people have done and try to drive them to a whitepaper on your site that "has all the answers". Be humble and accepting of criticism and give rationale behind decisions that people talking about - but be publicly thankful and open to their comments.
Tell people you know that you've been hunted so they can go upvote you.. but don't tell them to 'upvote' you explicitly (they frown on that)