The negative often becomes the focus of complaints about message boards, but I find them equally –– or more –– important when people come back from an electrifying early preview and report "THIS THING IS GOOD, SEE IT NOW BEFORE THE WORLD CATCHES ON." Thinking of shows like Hamilton, Mormon, Fun Home, Strange Loop, South Pacific, Three Tall Women, The Humans, etc. I've bought plenty of tickets out of the strength of early buzz on this board.