You know how some people, when talking about brewing techniques, will say something like; "I do X and never had a problem"? Yet you know damn well it's a 'bad' technique. Same goes for other things as well. Hell, people in Memphis and Kansas City both claim to be BBQ-masters but one is dry and one is slathered in sauce (usually).
You could give some folks a mushy rib that won't even hold onto the bone at all and they'll tell you it's the best 'fall-off-the-bone' rib they ever had. Not the way I like 'em but if that's the way they like them then fine. Some folks might get a rib/whatever with great bark and think the bark is ruining the whole rib, they expect no bark and mushy meat.
There are prob a LOT of myths in BBQing just as in brewing. 'Fat side up' is one that I heard had been 'debunked, for example. But if someone has been making their ribs fat-side-up for 20 years and telling everyone else that's the best/only way to do it, you can imagine they won't be easily swayed.
I obv took option 3 in the poll. But this is not to say I'm not snobby about certain foods (see buffalo wing thread). Make and eat 'em how YOU like 'em.