"It just occurred to me that much of the erroneous information that pipe smokers have taken to heart and pass along like gospel started out simply as marketing BS"
Gotta sell pipes somehow!
It's a mess now. Somebody reads something in a catalog in 1930 and by 1950 the source is forgotten but everyone knows it's true. Even worse, when you do go back to old Sasieni, Dunhill, BBB etc catalogs, some of the stuff you read is hard to assimilate.
Alfred Dunhill writes for a whole chapter about dead root Calabrian briar in about smoke. Ostensibly, every "Bruyere" pipe of the time was a dead root. a) this is nonsense and b) the DR designation didn't exist yet. And yet the core of what Dunhill writes, about Calabrian briar being slow growing, fine of grain, and basically excellent, is true. So was someone blowing smoke up HIS ass (and charging him double for "dead root" briar?). We'll never know at this point.
The Shell patent reads like a story about a guy who had some junky briar he needed to use up somehow. But the core of it is a process that hardened and inured a pipe, no doubt about it. But are we to believe that no Calabrian briar got "shelled"? Was it only, as he states, a means to use up the Algerian junk? Hard to think they would have just thrown away any imperfect (but blastable) Calabrian dead root, now, isn't it?
So at this point we have smokers who could not identify heartwood from sapwood on their briar, but know that any pipe stamped "Algerian Bruyere" will be a good smoker, regardless of maker, stem, anything. We have disingenuous makers who claim that all their briar is dead root (why not?) even though they buy it from the same mill in Spain that I get only "live root" from. We have guys like Rad who make great pipes through diligence and intelligence, and people would frankly rather have magic wood blessed by fairies - that's how seriously we take this experience - we'd as a group rather have an absolutely inane mythos than real understanding - it's more fun this way!
Guys who come to my shop are both treated and disappointed to have to learn to read a block of briar, and anticipate which might make a better sandblast or a better smooth. Brindle stems come from brindle rod. And if you drill a pipe well, and make the stem nice inside, the thing will smoke.