a. He figured out how to monetize running mediocrity before you did.
b. He is not as good as Scott Jurek (or xyz ultra-marathoner).
c. He runs slowly, you run less slowly (but you consider him a Gallowalker).
d. He is popular (and/or a publicity hound)(see ESPY thread).
e. He takes attention away from real runners/running events (see Treadmill Stunt coinciding with U.S. Championships Thread).
f. None of the above, you like him, he inspires you.
g. None of the above, you hate him because ________.