Some leaderboards seem to be bugged where players with more faults and more time are higher than players with lower faults and time. see [X] Base 37 custom track.
I noticed this as well. It seems to happen on custom tracks more often
Almost every time I go to watch a number 1 reply I have to sifter through the false runs and work out which one is rly 1st before clicking on it, usually at least 1 false run, some look like cheats but most look like bugs
The mentioned leaderboard is made up of mainly known riders and the times and faults look consistent, just ranked in the wrong order.