I would like to suggest some improvements for Raider.io score. Currently there are 2 problems which could be solved:
1. Dungeon without score gimping your overall score too much. You can clear 5 dungeons with +10 and having the same score as someone cleared all dungeons with +5. That's wrong.
2. Affixes are unbalanced. It means that there's no point to farm score on hard weeks. And it really shows, leaderboards are not nearly as full on hard weeks. People are just skipping those. And score is the same for all affixes which is wrong too.
The idea is:
1. Maintain different score for each affix and dungeon combination. Your overall score is sum of that.
2. Use some averaged score for each unscored combination.
So you start with 0 score. You're finishing a single dungeon for +10 getting 100 score. So you're getting 100 score for this dungeon and this week affix. Every other dungeon automatically gets 50% of that, so you'll have 50 points for every other dungeon and affix combination and your other affixes for scored dungeon are getting 80% of your highest score, so you'll get 80 score for this dungeon and all other affixes. As you're filling more dungeons (if you can finish +10, surely you can do better than +5 with any other dungeon, so there's room to improve), you'll get higher scores and if you've got +12 on easy week, you still can do the same dungeon on hard week for +10 to slightly improve your score.
Coefficients and formulas may be adjusted of course.
The only problem with this approach is buyers. Single high-level buyer run will award a lot of score. So may be there should be some adjustments like requiring 3 runs, etc.