I do not want to wade into the Tim Rawson versus Nelson Pass debate. I don't know enough about it and I don't understand copyright law, contract law or patent law well enough to have a reasonable opinion. They both seem to be good people at heart, so maybe they'll eventually work something out to the mutual benefit of both parties.
As for Pedja Rogic's post, here I do want to wade in.
I think there's a difference between someone copying a design/schematic wholesale, and someone borrowing an idea. Pedja claims that Nelson Pass is stealing ideas from him. If so, good for Nelson Pass. If Pedja published designs and schematics, and Nelson Pass copied those design and schematics, then I think yeah, Nelson is engaging in outright and malicious theft by his own standard. But from the language that Pedja uses, that doesn't seem to be the case.
Pedja considers Nelson Pass's current source buffer an abuse of Pedja's intellectual property. Except Pedja goes on to say that Nelson's "design is obviously flawed, for several reasons". This pretty much admits that Nelson's design is his own.
Generally, all the claims seem to be that Nelson has copied Pedja's IDEAS, and as far as I'm concerned, there's nothing wrong with that. It is entirely appropriate to borrow someone's inspiration. Ideas are one thing. Actual design, implementation, and execution are something else entirely.