Alex Fletcherwrote:I’ve heard that nearer to the beginning of “traditional climbing,” when using (hemp) ropes for mountain climbing it was seen as poor form to place any protection on lead and only place protection (early pitons?) from a stance at which you intended to belay up the follower(s).
"It was seen as..." implicitly envisions some sort of world-wide community that was all in agreement. The beginning of trad climbing in the US was around the mid-1930's, which was when the first trad routes were climbed at Tahquitz. In that era, there just wasn't that much communication.
So I don't think anyone can make a global statement, but focusing on the Sierra Club people who started climbing at Tahquitz in that decade, there definitely was not any ethic like the one you describe. The old Mugelnoos newsletters are all preserved on the SCMA web site, and they're really fun to read. What they describe is basically that people did whatever the felt like with pitons. Sometimes the follower removed them, sometimes they left them in for convenience. They often aided on them. There was no notion of "freeing" a route. You used aid if that was the most convenient way to get up. On routes that a lot of parties were doing, one after another, they would often leave in pitons to save time. IIRC the route Piton Pooper was originally done by placing pitons on rappel, then coming back and climbing the route.
The standard for a belay was a hip belay (no belay devices). I don't know for sure, but I'm guessing that most belays (lead and follow) were either from a stance on a ledge or anchored to a tree. On Fingertip Traverse, one of the newsletters from the 30's says they left some pins in permanently before the traverse "for safety." I don't know for sure, but this seems to imply to me that the norm was not to use pitons for anchors. I think they probably didn't carry very many pitons, and the ones they had were only suitable for very specific sizes of cracks. Therefore there would be many spots where today we'd build a trad anchor, but in those days they just wouldn't be able to. I get the impression that often they would just place one piton near the crux of a pitch.