This question is an exact duplicate of:
I often find myself not using some of the trickier parts of Stack Exchange, like recommending edits to people's answers, because I participate in a lot of Stack Exchange sites, and they all have different guidelines and rules. Sometimes I get something wrong anyway, but I try to stick to the most commonly acceptable behaviors.
Is that information aggregated anywhere? Has anyone gone through all the Stack Exchange sites and figured out which rule or behavior or expectation quirks are rare or common?
This question is not a duplicate of the main FAQ. The main FAQ covers SE-wide rules. I am looking for the most common non-universal rules across all the separate site FAQs.