As far as I am aware, nothing.
Ranks (beginner, novice, etc) are earned through posting and contributing (in the forums or in the chatter). They are given to members by other members who are ranked knowledgeable or adept. Promoting the site does not affect how you are ranked.
Positions (such as contributor, editor, moderator) are earned through contributing often, showing maturity, being intellectual around the site, that sort of thing. These, too, are not affected by promoting the site.