Why is this so interesting? I'm not denying that it is, but it's posted here and elsewhere quite often, and seemingly from different sources. Are they all secondary sources referencing the same primary source, or do different people keep noticing the same phenomenon?
I would almost bet my life it is secondary sources referencing the same single primary source - this sort of thing happens over and over and over. And often can continue on for years/decades popping in and out of popular news, despite being refuted (not saying that this particular observation has been, but could be at some point in the future).