[grzm]

You're speaking out of your behind.

Your detailed and substantive comment works just as well without this uncivil lead-in.

[truthexposer]

it's a much easier way to say, I significantly doubt your credentials as a person educated in both Mandarin Chinese and linguistics

[grzm]

HN strongly values substantive and civil discourse. If that requires a little more work on your part, please engage in it to help make HN a productive forum where discussions like this can take place. (That said, I don't see it necessary for the longer version either.)