I think the dude who put them in there should have a revelation and chop them himself...and he's so dang proud of himself that he had someone take pictures of it all. I ain't got the time or money to mess with that myself.
They aren't. Leaving stuff up there of any kind is littering. It ain't the size of the litter, it's the principle. At least you can pop old pickets out of the snow and haul down "tat" and other garbage.
Speaking of installing permanent anchors on big mountains, I seem to recall a number of years ago that there was another guy (Larry Penberthy?) who was advocating enhanced safety measures on Mt. Rainier and suggested that some sort of railing be put up on Disappointment Cleaver....like bolts on Everest, another way of dumbin' it all down for the masses.
I know a guy who thought they should put a fixed line in at Camp Curtis because the snow was low that year and descending to the Emmons was "a safety issue"