“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.
Quora still has answers to some old math problems so it's not all that useless.
I worry that it will abruptly die one day and we'll lose that. Perhaps someone should be archiving good quora information lol.