The OP was saying that if shaming becomes common then being shamed can't hurt you relative to the general public, because most of them have also been shamed.
Yes, which fails to imagine the ways that preserved public info can be used to re-shame in the future. If new ways of using that info arise later, and your public info happens to be amenable to the new ways even if many other people aren’t, then it offers permanently-existing surface area for future possible shaming that singles you out in some way previously not anticipated.