Definitely. Things are clearer when you write formally and strictly adhere to grammatical rules. When I'm speaking casually I omit words and (ab)use punctuation much differently, and while that is perfectly acceptable to do, it is more complex and ambiguous to parse.
As far as I'm aware the same pattern exists in a lot of languages and dialects, and it's possible to define formal AAVE too.
>I don't think there is anything "formal" about Standard English.
"Standard" English as she is spoke? No. But a3n was specifically talking about the formal version often called "Standard written English". It is very prescriptive and less flexible, which makes it easier to parse.
> Can you give an example of what you're talking about? Which grammatical rules do you have in mind?
Let's start with "every rule involving punctuation".
Another ambiguity is parse ambiguities like " I saw the girl with the telescope." What does "formal" English say about that?
Absolutely. It follows a strict set of formal rules and you can readily find sources to learn those rules. Heck, copyeditors regularly debate the specific nuances of how to consistently write Standard English.
Other dialects (and spoken language) are far less formalized. Where is the AP Stylebook or Strunk & White for AAVE?