I think there's more to it than that. If a quirkiness does not interfere with the conveying of meaning, then it is benign (and could even be an incidence of language drift). If I say, "Anymore, I find myself posting on Sakeriver more than on Hatrack," you may note the oddity, but you have no difficulty parsing it. People who don't punctuate, don't break paragraphs, and don't use capitals are much harder to understand, I find.