That's bizarre, when I first looked at it, I skimmed it and at the end there was a picture of who I presumed was the author who was a male with red framed glasses which is now missing.
Option A: photoa.jpg Lee Carp is one of the two cofounders of BayesianWitch. He graduated from the University of Chicago with an AB in Sociology - specializing in understanding how technology shapes culture. He is fascinated by how marketing, technology and data intersect. He likes to swim and bake in his spare time. http://www.bayesianwitch.com/media/img/photob.jpg
Option B: photob.jpg Shana Carp is the two cofounders of BayesianWitch. She graduated from the University of Chicago with an AB in Visual Art - specializing in understanding how technology shapes culture. She is fascinated by how marketing, technology and data intersect. She likes to swim and bake in her spare time. http://www.bayesianwitch.com/media/img/photob.jpg
However, the domain is registered to Chris Stucchio, the HTTP metadata shows the S3 account name stucchio, the user making this HN post links to Chris Stucchio's weblog, and in that blog he isn't averse to spicing things up with an occasional picture of a scantily clad lady [1]
Whether bayesianwitch is a company with one, two, three or more employees we can only speculate!
[1] http://www.chrisstucchio.com/blog/2013/human_checksum.html