I wouldn't mind having stats for the Demon Lords and such, but I don't want to have to buy a book filled with stuff that should be left up to the DM. There is no reason whatsoever to have created a BoVD. There was no need to outline drug use and other negatives.
Personally, I didn't quite see the need for it. And vile damage, c'mon now, what the heck is vile damage? All I know is I will not be buying this book, and I hope they release the stats on demon lords and such in some kind of different edition without all the crap on drugs, prostitution, and other such vile things found in society.
I don't want all the extra rubbish. I just want my demon and devil lords.