Filter segments by popularity, min distance, min elevation gain etc.
There are way too many segments on the roads my friends and I regularly ride - duplicates, segments contained in other segments, trivially short segments, pointless flat or downhill segments. It's hard to find interesting segments amongst all the noise. Yes it's possible to hide segments but I don't have time to click a hundred times after every ride to hide all those segments. We need a way of filtering segments according to our interests: those greater than a minimum length, or those with an elevation gain greater than some minimum. Or only the most popular segments: popularity could be measured by the number of times people have viewed the segment leaderboard. Ideally your segment filter preferences would be saved in your profile, and everybody would start off with default preferences, but you would be able to adjust the filters when looking at a ride: you might zoom out to see only the most popular segments or in to see all of them.
As a segment becomes popular it can bubble up and appear by default.