Good grammar or bad grammar, people really don’t care. It’s just that people who use good grammar and read well written books are not used to doing all the work of imagining who you’re talking about, and they don’t appreciate your making fun of their being intelligent when they try to follow what you are saying.
Most audiences who do not do that are of the type who laugh at the appropriate moments and grab another beer just to change the subject.
If you say a name and then use a pronoun, that’s who you’re talking about.
But you can abuse those who follow rules all you want. They still won’t know what you’re talking about when you do it again.
Take a look at the poster’s history that Old Lady posted upthread. This idiot was antagonistic to people in every post, and it’s a wonder it was allowed to live as long as it did.