[knughit]

What is good grammar? Good grammar is simply however the current people in power speak.

"A language is a dialect with an Army and a Navy".

[cryptotype]

Good grammar is something that helps large groups of people understand each other quickly and clearly. It helps those armies and navies succeed.

[startling]

> Good grammar is something that helps large groups of people understand each other quickly and clearly. It helps those armies and navies succeed.

Sure, but this has little to do with perception of good grammar (in the US at least).