With Zako's proposal to add categories for any% in addition to any% ISC, I think there are too many categories to display them in the way they currently are. I think we should stick with 3 types of categories (+miscellaneous) and have those further subdivided into others similar to how SR8 is divided into runs of v1.1 and v1.2, or games with fixed warps/no fixed warps. For example, we can have the 3 main category types be "custom series challenge" (maybe find a better name than that, but that refers to things like scrubs/standard challenge), then "main series challenges" (current apprentice/master) and finally "full series challenges" (since the series is not complete, these don't yet exist). Then for each type they can be split into any%, any% ISC, and 100%.
I think organizing the categories like that would make the leaderboard less cluttered, and then more categories can be added without having to have a ton of categories (if the any% categories get added that would be 6 categories, which is a lot).