Earlier quoted context omitted.
In general I agree, but I think when you are being explicitly asked for a "source" in response to an allegation that it is settled that FB has been "caught recording people," I would prefer to not have anecdotes in reply.
I mean… this is a conversation, not some sort of formal debate? Someone is telling you "hey, this happened to me," and your response isn't "have you considered this other explanation?" but rather "I won't discuss this further unless you do a bunch of research and present the results to me."
They're saying "facebook has been caught multiple times doing this", which is not a personal anecdote, but an assertion that proof exists and is available.
So where is it?