“Why Do So Many Music Venues Use Ticketmaster?” “What’s It Like to Train to Be a Sushi Chef?” “How Do Martial Artists Break Concrete Blocks?” If you were looking for answers to such questions 10 years ago, your best resource for finding a thorough, expert-informed response likely would have been one of the most interesting and longest-lasting corners of the internet: Quora.
Except Pinterest is good if you know what you're looking for. Quora has always been bad no matter what you do.
It's more that it pops up in Image Searches all the time and it's almost always a useless example of what you're searching for.