If I buy a VN it's usually because I really want to read it. In fact, I simply just don't read stuff I'm not particularly hyped about. This is to say, if I really wanna read a VN, I will pay the price.
The factor that not only could, but most definitely will prevent me from buying it is any form of censorship. I don't care whose fault it is, I want to have the intended experience the developers had in mind.
I don't care if it's just "some pointless sex scenes" or "just a couple droplets of blood". I will never consent to having someone else decide what is or is not appropiate for me to consume with my own money.