I think Pixxxel hit the nail on the head. It really boils down to your choices.

I have yanked twink/young guy sponsors off my site completely because they couldn't be bothered to reply to my e-mails.

I yanked another supplier of bear video content for the same reason, but I only did that because Reena at NakedSword offered to have some hairy men/bear banners made for their product.

I have a never bear sponsor who has never replied to my e-mails and they piss me off because they actually live right in my neighbourhood. I continue to promote them, however, because it's a bear bondage site and it does well for me. So, what choice do I have? It's not like there are dozens of bear bondage sponsors out there.

I tried to avoid promoting sponsors using the word "boy" but that became impossible pretty quickly.

I did stop using one sponsor partially because I couldn't stand the biting sarcasm I received every time I e-mailed them. However, had they converted better for me, I would have kept them. By the same token, I might have pushed them harder had I felt better about them personally.

The bottom line is this: If a sponsor treats you badly, they probably treat their customers badly. And I think that's just going to bring trouble down the road.

You don't have to like everyone you deal with, but if they treat you with respect, answer your questions, reply to your e-mails, and pay you on time, then that's the name of the game.

I've learned in a big way over the past year that sometimes you have to set personalities aside. (In AA they talk about principles before personalities.) Ask yourself these questions:

Can or does this sponsor make me money?
Do they seem to have good business practices?
Are they doing anything that I feel is unethical?

And if you're comfortable with those answers, then you can always ask yourself: Do I want to help this sponsor make money?

I think you also have to weigh how much time this sponsor will take up in your head. If you think you can put your feelings aside and get on with making money, fine. If you're going to spend a lot of time thinking or bitching about them, then I'd lean towards just moving on.

Cheers
Michael