Retire letter-based grades. Instead display (mode rating - rating)/sigma.

[KOLANICH]

Describe the bug

Available ranks are S+ (top 1%), S (top 25%), A++ (top 45%), A+ (top 60%), and B+ (everyone).

Do you seriously think that top 60% means A+, and everyone deserves B+?
IMHO it feels like bullshit.

Expected behavior
Because grades are arbitrary, just retire them and show the numeric value. Assumming that the distribution is Gaussian, the standardized deviation from mean should be a goodk compact and intuitively understandable measure.

[anuraghazra]

Do you seriously think that top 60% means A+, and everyone deserves B+?

The ranks aren't meant to be mathematically correct, and only there to gamify the system and intentionally curved to encourage less active users & give them a slack.

See #960 #1186 for more info.

[rasel3800]

francois-rozet:patch-rank