[Nathan]

Nowhere in that site did I find mention of them paying royalties to anyone. Not in the Terms of Use, not in News, not in Announcements, no where.

I did find that users are not supposed to upload copyrighted material in the TOU, which is exactly what licensed manga is.

Edit: All that the section of the TOU you copy+pasted is saying is member are not supposed to upload copyrighted material.

Guess what. I'm willing to bet none of those members own the rights to the licensed works.