We have a lot of Q&A sites in the Stack Exchange network now. 84 at the current moment. That’s … a lot of Q&A sites. But most people* don’t find us by browsing the site directory; they find us by encountering a Stack Exchange page in their web search results.
So that may lead you to wonder: what are the most freqently found questions on a given Stack Exchange Q&A site? In other words, the “Greatest Hits” of that particular topic.
(Trivia: did you know that the Eagles’ Greatest Hits doesn’t include their most famous song?) …