2. If one of your comments is badged, you will earn a full hubwheel.
3. If someone with a hubwheel chooses to, they can promote you to a full hubwheel at any time.
Seems unbalanced. Why not require a badge to promote someone generally, and the user can decide if they want to badge a particular post to do it or spend the badge to promote the user? It gets around the unlikely scenario where some spammer somehow gets a full hubwheel and then mass promotes all their spammy friends.