Call me a professional sourpuss
This Open Compute Project is really a teh zuck hobby project, as was clear in how they started: "Look! We're setting industry standards!" by, instead of using the ubiquitous 19" racks, they went for... 21"!!!!1! Conveniently forgetting that the 'merkin telco people that gave us the 19" also have a 23" on offer. Making adding the 21" a political move, or ineptitude, or both. Moreover, if you're going to reinvent the wheel like that, and be all open and interoperable and shit, then it behooves you to look a little beyond your own little rack here and notice that the rest of the world has moved on to metric. So new standards really need to have that, too, yes, TYVM.
With that in mind I can't help but grouch. "This Open Compute Project making up 'standards' for concrete now? In rods to the hogshead, what?"