2020 Rating and rank tweaks and analysis

[BHydden]

Please, everyone, read this latest announcement before commenting here with noticed bugs. They may have already been identified…

Rating system issues

Thanks to @flovo we’ve discovered a couple of issues with the rating system. The first, in the production system I royally messed up and forgot to account for handicaps. Big whoops. So, everyone who was noting that ranks were feeling really strong, yeah that’s why. Even if you yourself don’t play handicap games, your peers who might are going to get pulled up or down by it, which is going to tug your rating in the same direction. @S_Alexander even pulled some stats showing that a lot of dans ha…