I think the point that GP is making is
not that every subreddit that a group of people complain about is nothing to be concerned or worried about; rather, that people who inhabit subs dedicated to banning other subs operate within a moral framework which on the whole is dubious at the edges. For example, clamoring to ban consensual non-consent (CNC, a form of kink) subreddits because they perceive it as "normalizing" certain behaviors, or banning content of fictional characters, or banning support groups where various "degenerate" people frequent. These are edge cases which do not fit into the generalization of "jailbait"/"stealthing"/"creepshot" subreddits, which are non-consensual by nature. It's disingenuous to suppose that a subreddit for roleplaying BDSM/risque fantasies between members falls under the same moral realm of regulation as subreddits that post links to childrens' social media accounts to gather risque photos.
I'm all for illegal and non-consensual content subreddits to be banned. That's not all the mentioned "Ban This and That" subs are asking for, so I won't accept their moral opinions beyond the issues of non-consenting and illegal materials. They are prescribing a sexual morality, one which I, and I think many reasonable people, disagree with or at least have qualms with. If you don't believe me, r/BFHS seems to be a hotspot for anti-kink and anti-porn activists who suggest that women with kinks need to "heal"[0]. If that's not moralizing, I'm not sure what is.
[0] https://www.reddit.com/r/BanFemaleHateSubs/comments/unaa88/c...