I don't know either.
I hardly care to look anymore. It's gone beyond ridiculous.
But I just did a little research to see what's up with it, knowing full well it'd be a true
Microsoft experience.
Here's what I found. At the
official licensing eula repository, they are treating
Retail Windows 8 and 8.1 as the one and same thing. (Which comes as no real surprise, as Setup and Winver both still show Windows 8.1 as Windows 8). But the
Windows 8.1 OEM eula is separately listed from OEM 8. I didn't compare them to see if or how they differ.
Note carefully I said "eula" in the last link above. "End User". The license which we'd get upon purchasing an OEM system. The builder's agreement which authorizes supplying that OEM system is a separate form (from the
eula) which accompanies it. An example of the builders' license is
here (pdf). Its very first words screen casual users of that OEM-SB software, directing them to the
Personal Use License
here.
That's the guidance from the
official OEM System Builder site, which does
not distinguish Windows 8 from Windows 8.1. Yet, as you have already indicated, somewhere there is info which has given every authority in the entire www cause to state that the PUL is not applicable to Windows
8.1. Was that announced in a blog? I think maybe that's where that came from.
You'll recall, for Windows 8, there were only two license options, upgrade and PUL (full). That's now changed with Retail Windows 8.1 (I think) so there is no upgrade, but instead there is only a Full Retail license offered. Maybe that's how
the www wisdom about the PUL being retracted was inferred.
Have you ever told something, you know, not quite ahem consistent. And then, you find yourself having to continuously adjust it to make it fit the occasion.
Well anyway. Neither Amazon nor Newegg ever got the OEM-SB / PUL terms right on their disclaimers, not for the whole year they were peddling it for Windows 8. Now those terms are supposedly changed for Windows 8.1. ...or maybe not,
if you rely on the official OEM System Builder site.