I can’t stand this either, also “source?” thrown into the middle of discussions for information that’s broadly known or available within the context of what’s being discussed. This often just demonstrates the person arguing with you isn’t well read on the topic.
"Broadly known" information in such discussions is typically just everyone sharing the same hearsays they picked up over the years, without ever verifying any one of it themselves. If one finds a request for source annoying, it suggests the claim is actually one of those - broadly-known true and accurate information has plenty of definitive sources to back it up.
There's lots of dumb things "people in general" believe. The infamous list on Wikipedia[0] is just the tip of an iceberg. Everyone is vulnerable to this; if you aren't occasionally discovering and correcting such dumb "broadly known" things in your own beliefs, you aren't paying attention.
I mostly agree with your comment so I don't think we're talking about the same thing exactly. I'm refering to true and accurate information that should be the baseline requirement for entering a discussion or argument being requested and find that annoying.
