Example - and I mean this respectfully - but this particular question, for example, does not strike me as particularly insightful. That is, I'm not sure that it is something I'd want to see in a google search result ("serverfault how upvote works").

So while I am providing an answer to this question, I kinda feel like gaining reputation for this question - which isn't programming or sysadmin related at all - would be disingenuous. (haha, watch me get down-voted!) An increase in reputation wouldn't demonstrate that you (or any of the posters here) have insights into system administration.

Thus, no upvote here.

And that is true for many questions - interesting, good questions, but not something worth bringing to the attention of the greater community. Or, not something that has increased the stature and reputation of the poster in my eyes. With so many users, even if my opinion is unfair, it should certainly be out-voted by other community members! Invisible hand!

(Actually, I think this could be a thought-provoking question, but it should at the very least be community wiki!)