Well, I am used to the system, because I am adaptable like that, as well as being here for 1 month. Still, as someone who worked in UI/UX, I can see where the system falls short of what it declares to want as desired behaviour to what it encourages instead. A lot of stuff that could be useful from the application side, are instead outsourced to the user culture.

Some are there, but most people don't know/care about them. For example: other than voting for a cool post, that you feel deserves going "to the moon", the next best free thing is leaving a comment. Because it bumps post up into 'active'. So both for the post writer, and the commenter the best free promotional work is to make sure, that people actually stop to leave their comments.
Paid thing, is that promotion button, but it is hard to beat free in cost/effect area!