The legibility category under voting for debates in an inaccurate term which causes confusion.
Based on this: https://www.debateart.com/forum/topics/1790/posts/76387
That category should be "Spelling & Grammar."
It's clear whoever used "legibility" for this rating criteria clearly doesn't understand what "legibility" means (in an online/printed environment).
Since the "In-Depth Voting Guide" specifically uses "Spelling & Grammar," so should the voting criteria category it relates to, and not legibility.
Legibility is an informal measure of how easy it is to distinguish one letter from another in a particular typeface.
What is Legibility? Legibility pertains to the quality of the text, in particular, how clear the text appears to the reader. It’s about how easily a reader can recognize, distinguish and read individual characters in the text.