Wouldn't Quora or Reddit cover this 'need' but with the additional convenience of recorded/written word, so you don't have to be there and then to capture this

Wouldn't Quora or Reddit cover this 'need' but with the additional convenience of recorded/written word, so you don't have to be there and then to capture this random information? I understand to drop in to listen (for example) an AMA by Bill Gates, Warren Buffett, someone... but to be on a chatroom with 1000 people talking about sex.. I find it kinda unhelpful.