I find myself very reluctant to sign up for new newsletters on Substack now because my identity is shared across all newsletters, so I feel I can no longer keep my interests separated. To be clear: after commenting on one newsletter, it becomes impossible to comment on any other newsletter without compromising my privacy. I am not certain because I do not publish myself, but I worry that writers might have an insight into other newsletters I have subscribed to as well. I would really like to have an anonymous reading (if not commenting) mode, without having to manually open an in-private tab and only be able to view the public posts of whoever's newsletter I am trying to read.