Comic Sans as a font needs no defense. Just like a good band with bad fans, we don't balk at Comic Sans, we balk at the people who use comic sans for inappropriate things. (Or to use a more computery analogy, there's nothing wrong with capital letters or all-caps, but some users use them inappropriately). City memo minutes should not be distributed in Comic Sans. Wedding invitations should probably not be in Comic Sa…
"Comic Sans as a font needs no defense." I disagree, it's just not a good font. It has zero contrast (not suitable for display text and print), no harmony (not suitable for body text), and it's poorly hinted (not suitable for screen text). It looks more like finger painting than comic lettering [1]. It's not even a true sans serif; in the article, the author admits to cheating. There are way better fonts that Microso…
Which is beside the point. It wasn't supposed to be used for body text or print in small sizes. And it doesn't have to be hinted because it's not meant to be used for long form screen text.
Would you call a title font "bad" because it's not suitable for body text?
As for it "not even being a true sans serif", there are several fonts that cross those boundaries while being perfectly fine. Not being a true "sans/serif" is not some badge of dishonour.
Comic Sans is a good font because it is perfectly suited to convey the message people use it for: child-like, friendliness, common folk-syness etc. As such it's great for personal posters, party invitations, signs, yard sales, elementary school signs, etc.
Notice that even if that wasn't the usage intended by its creators, it's still a good font, because it found it's own niche.