The rate of erosion may prove to be faster the "second" time around as the topsoil and foliage are already gone.
I want to see the refereed journal articles to back up this surmise!!!!
More seriously, erosion and rockfall have absolutely nothing to do with it. It is a philosophical? or ethical? choice; rap off/toprope versus walk off? Absolutely nothing more. At least until someone chops it. Then you have no choice unless you want to build an anchor and retrieve it after your TR crew is done. And you know where I stand. Chop it and keep chopping it!
I assume all those who are so concerned about the danger of disloging rocks if they top out on SOE and thus rap from the "safety/thinking of others" anchor, never rap Baby and always walk off.
BTW - Three lurkers, who never or rarely post here, have complimented on my original post on this thread. Moral of the story: Post more often when fueled by 3 glasses of wine!!!!