I already contacted Seppe on twitter giving some thoughts but here they are for everyone:

While I agree on: any%:

• Unlock all cars cheat allowed
• Becomes new main category
• Figure out new timing solution

any% legacy:

• No cheats allowed

I'm not so sure about the rest, I don't think it would be beneficial to spawn 2 more categories for newAllRaces and new100%, I think we should just decide whether or not we should allow cheats and modify the existing categories, to avoid having a bunch of categories that nobody wants to run anyway once we decide on the new standard.

Yes, that should be the case

The thing is that you beat the actual time he had, but not the one he submitted to the leaderboards. Since he submitted it before milliseconds were added, his time counts as a 1:52 flat, rather than the actual 1:52.8 or whatever. Hopefully some very patient moderator will go through the times and edit the submissions with the proper milliseconds

I tidied the categories up a bit, if your run doesn't show up anymore, please resubmit according to the new categories, sorry for the inconvenience.