Bryan has talked about how he supported it when Joyent dropped 8chan and, if my memory serves me right, that he wished they'd done it sooner. In the same conference talk he muses on the responsibility of platform owners/providers.

Yes, it was actually Gab -- and I talked about it in a talk on ethics on software engineering.[1] As you indicate, that talk captures my feelings on the matter, so I'll let it speak for itself...

[1] https://www.youtube.com/watch?v=0wtvQZijPzg#t=29m52s

Ah, yes. I must've skimmed an article a little too quickly. Thanks for the great talk, that certainly made me reconsider some things when I first watched it.

What does this mean and why is this Brian guy allegedly throwing a fit?

It's a bit of a weird comment but I've had similar thoughts about what the Oxide Computer Company is doing could be a good use-case for Parler. They're doing some awesome stuff around providing software to help manage on-prem infrastructure. They also have a fantastic podcast [0]. I don't claim to know what Brain Cantrill (one of the founders of Oxide) thinks about Parler's situation or their content but from some of his talks you can tell he's an incredibly ethically conscious person, so the commenter above is likely assuming he's not a fan of Parler.

[0] https://oxide.computer/podcast/