It's strange to me that those who claim to value things like intelligence and unorthodox or contrarian thinking will disregard someone entirely if their command of language is loose, or their linguistic choices read as overly casual. Conflating style for substance is curious.

This heuristic seems unfair or incorrect to me. It immediately rules out engaging with meaning and allows for one to view themselves as superior easily, which is usually the opposite of how one should engage with someone who thinks differently than themselves. And yet.