Resetting the times probably *does* help to some degree, because most cheaters probably get bored of the game and move on-- while hardcore Wipers stick around and can update their profile.

On balance, I think we are relatively lucky with the apparent small numbers of cheaters in the upper rankings-- probably the kinds of folks that would cheat don't have the inclination to put lots of time into time trials, especially at the faster speeds, and therefore don't rank very highly, as Flashback says.

An additional easy fix for removing cheaters from the leaderboards would be to have a hard cut-off, below which times would not be accepted. For example, it seems pretty unlikely that lap times below 28 seconds are real for Talon's Junction White-- so why not eliminate those times? If the cut-offs were adjustable, they could be tweaked if legit wipers were able to obtain faster times.

Or maybe it's a bad idea to be identifying hard cut offs so early in the game's lifespan...