Having thought about it, "NGJ", while providing a good technical explanation of what glitches aren't allowed in the run, doesn't provide any good explanation for anyone who happens upon the name itself. I mean, if I tell you that the category is called "No glitched jobs", unless you're familiar with FF3, you have no idea what the run is like from the name.
I think that "any% (warpless)" (or something along those lines) is a much better name, because it immediately conveys the contents of the run. If you tell a person the name of the category, they immediately get an idea of what the run is like.
Of course, I'd like to hear what other people think about this, but I really think that this will make explaining the category easier.
(with the FF relay coming up, if we don't change the names, I won't be able to count the number of times people will ask what glitched jobs change / do, when all that's really important to know is that the category doesn't involve warps)