We recognize that having the set leaderboards only show those who completed all of the problems, is not a true reflection of the activity that is happening on a set. There were also other technical issues that made the leaderboards buggy, like it only worked when you were on the set. As such, most of you felt like the guy above, and some of you might even have looked like that.
To combat this issue, we have updated the set leaderboards so that you can submit your score whenever your score has improved. Even if you solved problems "outside" of a set, you will still be recognized for your hard work, if you are competitive enough. Yes, you can submit your score multiple times, as long as your score has improved.
The leaderboard is paginated, with 20 entries displayed per page.
If you sort by "Most recent", that will give you an idea of the activity on a set, and if people are interested in working on it and submitting their score.
If you sort by "Problems Solved", you get a list of everyone ordered by the number of problems that they solved, sorted by chronological order.