After the last thread about this I had a look through a couple of my ancient "Learn to Ride Mountain Bikes" books. One, by William Nealy (sp?) is illustrated with a series of rather annoying cartoons and confidently assumes that raybans and converse sneakers are the absolute height of cool and canti brakes and thumbshifters are the apex of technological attainment. Can't recall when it was published – mid-90s at the latest.
It reckons that if you're riding over a big log, you shift the chain onto the middle ring, whack the big ring into the log as far up as you can get it and use a half pedal stroke to ratchet the bike over the top of the log.
Maybe it's all utter bollocks and no-one really deliberately did this, don't know. I guess 7/8 speed chainrings were rather thicker than 9-speed and perhaps didn't bend as easily as well. But I certainly do remember people taking the pliers to chainrings with bent teeth.
None of this is to say that bashes aren't useful, or that anyone needs a big ring, and some people are clearly more 'core now than anyone was in the early 90s. To say that something is "fashionable" isn't necessarily a bad thing, and doesn't reflect badly on the person using it necessarily. 🙂