While I don't think the proposed edit would help, the commenter isn't actually wrong - in modern usage, it is more correct to say "fewer corrections" than "less corrections." Language doesn't form in a vacuum, nor is its growth confined to dictionaries. Rather, language is a living, breathing thing and grammar is closer to history than mechanics.
Consider the less v. fewer debate. Yes, several hundred years ago, it was just fine to say "less corrections." However, for whatever reason, the upper crust decided that "fewer corrections" both looked and sounded better. Consequently, "less corrections" evolved to be less correct. My inner smartass wanted to say "fewer correct", but that would be a silly joke.
It's like Russian. If you speak French, you can understand many Russian words. This isn't because French and Russian are linguistic cousins. Rather, it's because French was the language of nobility and words trickled down.
Or heck, we could talk about the word "you." You was originally formal, whereas "thou" was more relaxed and informal. Yet, today, if I started a comment on Hacker News with, "I fear thou are wrong", it would seem needlessly formal.
To conclude this long mess (it was supposed to be four lines and turned into paragraphs), language evolves constantly. Though certain distinctions didn't exist in earlier English, they exist now. However, if you know much about the history and formation of English, you should be less pedantic. It should also make us much more tolerant of people for whom English isn't their native language. We speak an intensely complex language with random rules that apply in some cases and not others.
Thank heavens we don't have to compile our language before we speak it...:)