Anonymous wanted to like it, and there are some worthwhile moments in the early bits -- Harry's freakout on seeing McGonagall's transformation, or Harry trying to convince Draco of the Powah of SCIENCE~! -- but the pace is slow and a lot of it Anonymous thinks is Less Wrong trying to promote his cognitive theory through a popular medium instead of telling a good story.
It's way too didactic and smug, reeking of "I know better than canon and I'm going to show you! Aren't I smart and ever so logical? *preens*" I don't mind people improving on canon, but that confidence has to be backed up and many times, it isn't.
I cannot fucking STAND XKCD. At this point in my life I have had just about enough of condescending science nerds, and on top of that there's that one "someone is wrong on the internet" strip that gets posted every ten seconds in every thread on the internet.
Same thing happened with Dresden Codak, actually. The intense pretentiousness of the author, combined with ONE STRIP getting linked again and again (seriously, no fewer than twelve people sent me a link to that "Dungeons & Discourse" comic in the space of about two days) just drove me to hate it.
See, I find the "someone is wrong on the internet" strip to be funny because it's pretty dead-on - and some of his observational humor is good. It's when he goes into more scienc-y, tech topics (Like the one about HD. When I read his snotty comment about "good" and "bad" frame rates I wanted to find a way for my Princeton film professor to punch him through the internet) that I have to roll my eyes.
I am probably over-exaggerating my hate for XKCD -- I do like some of his strips. I'm sure he's an OK guy. But every time he makes a snotty comic about English majors I want to slap him through the internet. (I missed the HD comment >_>)
Dresden Codak, as far as I can tell, started as a 'lol random' gag strip and somehow the author started spooging enormous amounts of exposition and half-assed transhumanist plot onto it. No wonder it's confusing.
I in theory should like the comic. I'm a nerd who loves science. But... I'm one of those horrible english majors, and like literature even more than science. Thus I'm the target of a lot of the jokes, and that's not really that funny to me.