And that's very useful for establishing which sources we should rely upon in a shared discussion.
My sister's husband was quoting Breitbart news to me. I let him know that I believed that was a propaganda channel. In many discussions, its very important to establish who is, or isn't, a trusted source of information.
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There are others who quote Elon Musk's tweets to me. Many of those tweets have no basis in reality IMO, so I let them know that I don't trust them, and I ask them for another source of information.