The decision is not based solely on the amount of kickstarter comments / forum comments. As you can see, I have added many other factors to the form, you still of course have a chance to win even if you did not pledge and have not chatted in comments section or used the forums before. Those who have will obviously have a better chance of winning though.
So you didn't really bother reading my post. Fine.
How are you going to decide who is the better contributor? Someone who posted 75 comments is better and stand a better chance than someone who posted 74?
And if someone posted 75 comments but only pledged for $451, while someone else commented 33 times but pledged $500, then who is the "better" fan?