I think that's setting the bar a little too high. What's reasonable to expect, IMO, is proper fact checking (which was your other, completely valid, point) and a level of background knowledge (including carefully kept records) that allows the blogger to analyse and put into context. A good blog post tells me when an offer is best in class, for example, or when to expect a fare sale based on previous years. A poor one regurgitates press releases, marketing blurb and other blogs.

Still on wrong/misleading, VFTW let some more hurriedly written nonsense slip through into a post last week: "Even most Asia Pacific carriers have eliminated first class." Reduced, certainly, in many cases, but eliminated?!