That's pretty simple:
Like any fetish if you're not into it, big chances you won't understand the appeal. We're on a furry board, how many non-furries can understand the appeal in your opinion?
Weight gain furry comics in which the characters are not awfully drawn, and/or giant blob of fat, and/or only males are rare as hell. So despite the author being a complete asshole some people will keep supporting him. Because supply and demand.
Edited at 30/8/2015(Sun)07:37:53