Yea - unfortunately it seems like only the 'elite' members get a say (and the ability to promote their product continuously).

Unfortunately, I have no idea what criteria they use to determine whether someone is elite or not. I'm one of the first 200 users on the site [1], had my own product submitted to the site (with over 100 upvotes [2]) and I STILL can't comment or submit posts.

[1] http://www.producthunt.com/@taphangum [2] http://www.producthunt.com/posts/myapptemplates