This goes into the how, but to me the more interesting question is the 'why'. Why should someone interact with something that the author doesn't throw his/her/their name into? I only have one example of why; I'm a genuinely curious and open person and I like having my beliefs tested, some of my beliefs are nuanced enough that I sometimes break down my current beliefs and my reasons into blog posts. Things that I thin…
Interesting example from print media: The Economist doesn't have author names. Critique and appreciation have both been expressed over this, but I don't think there's an answer that will convince you.
My cynical side says that this is a way of preventing journalists who work there from accumulating a fanbase which would give them leverage over the magazine (since they could then viably threaten to take to different publications). It fits in with their neoliberalish philosophy.