I was baffled by those Q&As on Amazon, particularly the ones that just said something like “Sorry, I haven’t used that feature” until I received an email from Amazon saying something like “Someone has asked this question about a product you bought, can you answer?”

I did what I assume the product managers expected to happen and just ignored it because I didn’t know, but presumably some significant proportion of people will throw some nonsense answer in, and no one at Amazon then checks the question was answered.