It's a bit like having to warn, on packets of peanuts, that the contents might contain traces of nuts and thus be unsuitable for nut allergy sufferers. Honestly, if someone's dumb enough to take the word of some random blogger as "expert advice", they probably deserve it.
But it does raise the question - if people are now faking blogging, does that means it ranks as pleasurable as that other phenomenon allegedly so widely faked... orgasm?