Pretending to be smart by calling someone else dumb. Keep doing your thing.
Saying a person has "tunnel vision" isn't the same as calling someone "dumb," which is the word YOU used, not the poster. "Tunnel vision" means a person is focused on a particular thing while ignoring everything else. For example, he is tied with Babb for assist/to and is better than Shayok/Jacobson, and also an improvement from last year, from .95 to 1.27.
Ignoring that is why the poster said you have "tunnel vision." Interpreting that to mean he said you are "dumb" is, well, kind of dumb.