Yes, I'm somehow¹ more aware of these things than most Americans. It's mostly a typographical problem. The lettering choice on the sign tends to make it easy to see an n as an m. Other restaurants offering Hunan cuisine don't seem to elicit the same reaction anywhere near as much (or maybe it's just Hunan Taste's location at a well-trafficked intersection).
1. My brain is full of all sorts of random knowledge with no good explanation for how it got there, like names of Chinese provinces or how to conjugate French verbs.
