should be ok if there is warning, but i'd wait on a moderator to comment. I'm a big fan of kisirian but its obviously not everyones cup of tea. Also i really recommend buying his stuff for support, i have done that for most of his dlsite ones.
Chiming in three weeks late on this, because nobody brought anything to my attention, and I just now came back to this thread to see what I missed. You guys can always feel free to PM one of us with any questions you have, it's what we're here for. :)
As for that, I would say it's fine. There was a clear warning, in red text, and it was linked to and not just thrust up on the forum in IMG tags for everyone to see. I don't see a problem with that and the way it was handled, myself.
Please continue the great posts :D