IMO A / B / E / F are what I'd rule out.

I really don't think C/D should be ruled against in the glitch-less category, as the fact the developers put collision in that spot isn't entirely a glitch per-say, it's just shitty level design, it's not happening as a result of some fucked up code like lara being able to air-walk, or being able to roll up slopes, or delayed swan diving, it's simply them making bad levels.

Overall for a glitchless run, I'd say that anything that isn't intended with regards to programming or framerate shouldn't be allowed, where as bad level design is just bad level design, if this means that you can skip a section due to bad level design I'm all for it.

That being said, there could arise a situation in the game where you can get OOB without doing any glitches (The closest thing that springs to mind is in the folly at Poseidon's door where you can go OOB by jumping into a small broken ledge, it doesn't help the run but could it be argued that you're not using a glitch to get OOB? Or you are because you're jumping into a ledge to get pushed out, it's debatable). at which point this would have to be reconsidered.

I'll throw my 2 cents in for this.

1. I think we definitively need a distinction between BJ and no BJ, BJ drastically speeds up the run and in some places out-right kills it, so as a Variable I don't think it portrays just how much it changes the run.

2. I think Glitched/Glitchless should also be different categories. and that Glitchless needs to be properly defined, Since you've proposed to speak about it in a different thread I won't state what I think here but I do think it needs splitting.

3. Other categories would be nice to spice things up, just need to decide what's a neat idea for a run.

4. I haven't seen another game out-side the tomb raider series that has Segmented as a category, even Valve games like Portal (which their segmented runs are insane) aren't on the leaderboards anywhere. Moving them to a thread seems like a good idea.