This is not what you TRULY believe, right? Let’s say you create an platform (hardware, OS, whole thing) that’s ONLY for sharing cat pictures. Because cat lovers would really enjoy seeing pictures of ONLY cats, they appreciate that you have very stiff moderation for removing any picture that’s not a cat (memes, other animals, etc.). You’ve created algorithms and have a large staff to ensure that cat pictures get posted quickly and anything other than cat pictures get removed or, better yet, rejected before their posted. Not only that, their kids enjoy pictures of cats, too, and they know they can leave their kid unattended with the device knowing all they’ll get are cat pictures.
Unfortunately for you, people go CRAZY for it. For whatever reason, your hardware sales top X(tbd) in year two. Now, where you banned anyone that posted other animals, you have to accept that content now? Further, if someone posts porn, pre-X(tbd) you could reject the pic and ban them, but post-X(tbd) you have to accept them? All moderation disappears post-X(tbd)?