Somehow, I suspect this the most. It's the defensive tone they tend to strike, I think. Particularly apparent in threads about new research. Lots of "I actually had this idea", and "my concern for this is [slippery slope fallacy here]".

I sincerely hope that I never become so egotistical about my own achievements (or lack thereof) that I instinctively despise those who achieve more. Fuck that.