If he's targeting a niche, I'd love to know the customer profile. Maybe he can find a group of people who want to read books in Figma
Some people also just want to have fun on the internet, remember Myspace, Tumblr etc? These sites were hardly functional, inclusive or accessible but they sure were fun.
Sure, but isn't that called trolling? Shouldn't trolls be blocked by default?
Appealing to different tastes is far from trolling.