I don't understand actually organised Leaderboards - are category for Difficulty levels from easy to SuperTux but... not used to determine AI opponents, which in speedruns are not allowed? No better delete them?

I noticed several speedruns which are wrong category....

first and second level - 1st place AD2. I Click film and what i see? Via nostalgica! 2st place MCMic origin with his TAS (i don't know whether they are permitted) 2st by brmbrmcar is correctly.

Please fix it.