My instincts say that this whole narrative is fabricated.
"Have you heard of [unimportant username] from [unimportant website] who just so happens to be you?" Yeah, right.
I would expect that in 99% of the cases where the answer to "Do you read TDW?" is "yes" the answer to the followup "Have you read the posts by [foo]?" would be "...uh, I have no idea.".
This story seems completely fabricated to me for this reason. EDIT: Mind, if TDW had a different format, more like HN perhaps, this wouldn't have raised my eyebrows. If I were asked in an interview (after revealing that I participate on HN) what I thought of tptacek's take on javascript crypto, I would not be surprised in the least.