Right now there is no reason to do that. All IL runs are comparable in the same leaderboard.
UPDATE: The leaderboard went through some more organization. The new DJ-less category is removed, and we are now back to one main category for completing the game. However, now we have a new variable for "glitched double jumps", to indicate if they were used in the run or not. You can filter any leaderboard by this variable, if you want to see specific rankings for runs with or without glitched double jumps specifically. The new variable also applies for individual level runs.
As I'm writing this, ILs hasn't been updated yet, so be patient about that. For full-game runs, all runs under 3 minutes were updated correctly. If you have any full-game run with glitched double jumps, and the variable says otherwise, feel free to contact me and I'll fix it.
A quick question, as we are back to one category. am I unable to submit a run for the DJless category as I am already on the board with a run.
or is it possible to be on the leader board twice? one for each category?
I think this is a better way of incorporating DJless into one category. It will just be simpler with one leaderboard.