Why don’t you care about Grammar?
lolwut? I R totes gram-fan, yo.
What in the world gave you the impression that I don't care about grammar? Is it all the grammar mistakes I make? Because I've been seeing an editor about that. We've been working together. I've made a lot of progress on my problem. "Hello. My name is Chris and I'm really sloppy with my commas."
Because at least one of those, I'm probably not going to apologize for.
Ironically, most people don't actually know the best form of English, or at what point in time they would like to "freeze" the inexorable march of linguistic drift. ("Sunday Sept. 18, 1983! Everything that changed in English before that is 'Duh, of course language changes and evolves.' Everything that changed after that is just made-up shit by kids who need to get off my lawn.") If they are from the U.S., they probably do not have a style guide they go by or know all the modern updates. Actually having a metric for embracing new grammar guidelines and rejecting others would be complicated and would require some sort of forethought and conscious standard rather than just a snap judgement and feeling of superiority. They probably "salad-bar" the rules, taking what they like and deeming the rest to be the work of knaves. Mostly they just go by what they were indoctrinated with during high school and consider everything else to be a mistake of some level or another.
EITHER they are pulling the "My way of doing the religion is the only right way" move of thinking American (or British or Australian or….) is the most "correct" and the other main forms are either quagmired in antiquity and need to join language in modernity (if it says their own linguistic drift is incorrect) or are some bastardization that cannot be allowed to go unremarked upon (if it has drifted linguistically from what they themselves do)—each mostly dependent NOT on some sort of actual rubric, but simply on whether it agrees with what they learned in high school.
OR they have one idea for a "correct" form ("The King's English," basically) from which all other 160(ish) linguistically recognized English dialects are simply more or less error filled. Usually while failing to notice that the further one gets from the British Isles, and the more the people speaking the dialect are not white, the more the language is appraised as "impure" and lacking.
*Oh and by the way I'll be scrutinizing everyone who isn't white for ANY possible deviation I can point to discount them, and white people will get a pass. A double-standard phenomenon you actually see MORE acutely among Anglophones when it comes to non-standard grammar.
Now this isn't to say that a writer doesn't need to concern themselves with grammar. Writers have to care about grammar. They have to. A writer who doesn't care about grammar will not be taken seriously by gatekeepers (if traditionally publishing) or by readers (if non-traditionally publishing).