I think being a puritan, especially openly, when it comes to fandom is a bad thing, actually. How have people lost the plot when it comes to making and engaging with fanfiction especially??
"Don't yuck someone's yum"
"If you want to see it sometimes you have to make it"
"Don't like, don't read"
"It costs $0 to be kind"
All of these should be commonly understood as How You Interact In A Community, yet still, people don't get it.