This is not a real comment policy but one written up for amusement by Sean Carroll of Cosmic Variance in a moment of frustration with the rude behavior of a few commenters there. It does express the point of view of blog hosts rather well at times, though:
One goal of a good cocktail party is that you meet people you haven’t met before, and perhaps share an interesting conversation. But the guest list, and some broad expectations for personal behavior, are set the by organizers. Party crashers who are obnoxious, or disruptive, or even just deadly boring, may be asked to leave the party. Nobody has a right to attend whatever parties they like.
Consider, in terms of this analogy, the temptation to complain out loud about what the bloggers are choosing to blog about. That would be like showing up at a party, noticing that the only appetizers being passed around are spring rolls and bacon-wrapped dates, and proceeding to raise a ruckus about the absence of cocktail weenies.
No, come to think of it, it’s not like that. It’s like showing up at a party, noticing that spring rolls and bacon-wrapped dates are being passed around in addition to your beloved cocktail weenies, and loudly proclaiming how offended you are at the presence of such outré finger food at this event. You shouldn’t complain about the host’s taste in appetizers; if there’s nothing there you like, go to another party. And if there is, ignore the offerings you don’t like, and enjoy yourself some weenies. Delicious, delicious weenies.
More here. [See the post before this one for an example of demanding “cocktail weenies”.]