I just don't see other reasons why would someone hate him.
For non-bronies: ponies in socks are considered as the sexiest thing alive, so in fandom putting on socks is like undressing for humans.
Blaze (the pony) belongs to Phanact. Ponies belong to Hasbro. In the house that Jack built.
I am not claiming, that this is true. But purely theoretically, if someone knew, that someone is evil pony exploiter, wouldn't the best way to share the truth be posting it as a comic into humor website?