> Archive.is has more money, resources and ASN's than Akamai so surely they can mitigate anything anyone can throw at them.

This statement makes me think you're misunderstanding the person above you.

They're saying this blog author, gyrovague, is doxing¹ Archive.is. I am wondering if you are misreading that as DoSing. To "dox" is to reveal the identity of, typically for purposes of harassment. To "DoS" is to spam with requests. Archive.is is not being spammed with requests, nor do I see anyone here suggesting they are except here: "resources and ASN's … mitigate anything anyone can throw at them" … that seems to indicate you're (mis)reading it as "DoS"?

(I.e., gyrovague is doxing the Archive.today owner¹. Archive.today is, in return, DoSing gyrovague.)

(¹I'm not trying to comment on whether that term is being appropriately applied here, or not.)