The notion of grammatical correctness is cultural. There is no objective correctness for grammar. It’s just a convention, and grammar nazis try to make everyone do it their way. They argue that it makes things easier if we all follow the same rules. And sure it does. The question is, which rules should become the universal rules, and who has the power to make them universal?
So certain people take it upon themselves to make the rules they choose be the universal ones. Remember, it’s just the rules they choose. There is no objective reason why any one set of rules should be correct. In reality, people vote with their feet. What people use the most becomes defacto correct, no matter what any group of grammar police might try to enforce.
Most of us just use the grammar that makes intuitive sense to us. And the amazing thing is that, for the most part, we understand each other. We even can make sense out of non-native speakers of the language. But do we want to?
The people who think they have the right of it get to exert power in trying to enforce their version of grammar. And most of the fights we have here are really about people insisting they are right because they are smarter and they are more literate and they are members of the in club.
People who aren’t in the in club get pissed off and may or may not try to fight back. But mostly grammar police are out to hurt people’s feelings, only they get to feel righteous about it because they are, after all, being school marms (and I think it is mostly women who do this—so it is part of the civilization battle, as well).
I do like to be able to understand people. But I understand that it is my choice to reach out to those who don’t speak the language the way an educated person does or to try to make uneducated speakers feel bad about themselves. I prefer to try to make people who have an attitude about grammar feel bad about themselves. It’s an elitist and unkind thing to do. Most of them do it in a nasty way. If people really cared about how uneducated people speak, they would be kinder and do the grammar correction in private, instead of trying to humiliate people publicly.
This question is an attempt to humiliate people. Of course, they are unnamed, but lots of people will feel shamed by it. Which is a shame. Of course the OP will say there is no such attempt, and maybe she really believes that. I find it sickening and mean and even though fluther rules call for good grammar, I do not think they call for us to point out people’s mistakes in public. It is a private thing for the moderators to take care of.
If this were a real question, it would be about the proper use of I and me, or something like that. There would be no “poor grammar skills” in the question. That is just picking on certain unnamed people and it is mean. No two ways about it.