proper grammar is taught in elementary school.
You don't need to be an english major to make a complete thought in sentence form.
If you don't have time for proper grammar, then you obviously don't care much about making money.
You need to convey your messages more clearly for your customers.
If you just slowed down a little bit and reread the things you write to be sure they make sense before you hit enter, you'd have less confused people nagging you to clarify.
If you're clear to begin with, it'd save you all that trouble of trying to clarify what you meant.
You'd probably put in less time rereading and fixing your initial comments than the time it takes to defend yourself afer no one can understand what you're saying.