I never understood why people hate on MG Siegler so much and then give John Gruber a free pass.

Those two things are not mutually exclusive. I dislike MG's and Gruber's articles almost equally. I would argue that Gruber usually tends to have a little more substance to his fanboyism, but I generally don't read either of them.

Plenty of people hate on Gruber as well. Look at the HN comments for any of his posts, there's always someone calling him out.

My solution is not to read authors that I dislike. I find that it is 100% effective.

It is also 100% effective in losing your ability to think critically (see the TED talk about "filter bubbles").

I try to read authors that I disagree with but respect. A certain amount of bias filtering is inevitable, but I like to think that I at least try to listen to opposing viewpoints. Especially about issues that matter.

When dealing with issues that don't matter, like Apple fanboys, I find it easier just to ignore them.

Because you don't go to Gruber's site expecting anything but Apple news. It's unfair to complain he writes about that, it's the only thing he writes about and the only reason to go to his site at all.

On TC it feels like they secretly wish they were an Apple blog.