This might count as being a member of the quilt police.
I saw a quilt being displayed at a store - it was NAILED to the wall - and it was pulling at the nails and looked like it might be getting ready to tear from the weight of the quilt.
I did tell the owner/manager that the quilt was "in danger" being displayed that way. Whether he ever did anything about it - I don't know - but he gave me the impression that he really hadn't known any better and hadn't noticed that it was pulling.
I didn't yell - just mentioned politely and privately.