I have the same rules in my Terms and Conditions plainly posted for all prospective buyers to see. My position is it's my property, I own the intellectual rights to it and am selling you the right to use my property under my conditions. Call it discrimination or whatever you choose, but it doesn't change the fact that it's my property to sell to whom I choose. Some may say this is a poor business decision, but I say it's a poor business decision to have your product associated with certain content. Thank you and have a nice day