This question is an exact duplicate of:
Well, I know this is weird question. Recently I upvoted some answers, and I get a tooltip saying "You haven't been upvoted a question for a while. Questions need upvote too". It was nice to get it. But if I am correct there are many such behavioural things sprinkled in the whole Stack Exchange user experience. It might not exactly be the hints like above, but may be some other rules that run behind the scene.
- Rules of badges, when you get which badge
- You cannot downvote someone straight on many answers
Is there any post where I can get such behaviour / rules / functions done/followed by Stack Exchange network? I know some of these can be found on help page like badges, but then I guess it does not list other behaviours...