@AmWiser – It’s generally better not to end a sentence with a preposition. This is a rule that doesn’t matter much anymore.
@Dutchess_III – In your second example, the speaker(s) would notice. I’m not sure why they wouldn’t. Proper grammar indicates a certain level of education, most of the time, and not intelligence; someone who says ‘he don’t got no…’ is probably intelligent enough to notice the difference between his speech and that of someone who says ‘he does’t have any….’
It seems somewhat ‘elitist’ to me to think that people speak non-standardly only because they can’t tell the difference. Not that you are that.
Online, with txtspk, it’s a little different. I think people know and notice the differences but gloss over them, and take (im)proper grammar, spelling, et al as signs of caring (whether too much or too little) rather than signs of education. I hope so, anyway.
@omph
I know my way around these streets.
…lol… bro…