It was not a joke because it wasn't funny, and it wasn't an insult because, well, I'm not insulted.
More importantly, that first statement of yours is totally irrelevant. My point is clearly that whatever purpose of being insulting there could have been in calling out Stocking on non-existent vore special interestism is nullified because it's just not true. It wouldn't even necessarily be accurate to call Badspot's intentions to be insulting so much as to point out hypocrisy, but since he's wrong on that point it doesn't matter.