>I think you are being downvoted because your last paragraph is unnecessarily derogatory. Rather than having a preconceived mindset, I think she's being honest

>I think you are being downvoted because your last paragraph is unnecessarily derogatory. Rather than having a preconceived mindset, I think she's being honest when concluding that it's an open question: "I cannot think of the Erdős Collaboration Graph without also thinking about who is represented and who is not, and why." You're probably right. I don't need to bow to PC culture here though. Honesty on her part doesn't preclude her from being biased though. With a topic like this it's very difficult not to be biased. I just wish she had at least assumed her maybe being biased and analyzed the statistics a bit to see whether her intuition stands up to scrutiny. I think it's somewhat probable that it does! But you need to show it.