[eximius]

The author is the creator of ZeroTier. He is likely aware and didn't care because it's extremely pedantic and most people know what he means in informal settings, which this is. I expect he'd use the correct case in an RFC or something.

[CydeWeys]

Getting abbreviations for bits/bytes correct is not "extremely pedantic", it's about communicating correctly. In a network context, which this is, "b" means bits, but he was using it to refer to bytes. Also I've never heard of ZeroTier, but even if I had, I probably would not have made the connection that he was the author of it, so being correct about these things is important for establishing credibility with new audiences.

[eximius]

IIRC, most if not all uses of 'mb' or 'gb' were about disk space or RAM, so not really a network context - this is about bloat, ports are just the whipping boy.

And I'm not against pedantry in the right context, but this is just a casual, relatively nontechnical rant. Pedantry is really not needed.