Why does the existence of porn subs degrade the value of feminist subs?
But you set yourself a trap with the "well catered to by the administration" because you've defined this situation such that "catered to" is the equivalent of "done literally everything but gone nuclear with a full ban".
So now I can easily point to the continued existence of outright neo-nazism, white supremacy, civil war idealism, violent right-wing rhetoric, terrorism support, and other radical examples of "normal conservative dialogue" on reddit and easily claim that neo-nazis terrorists are "well catered to by the administration" by virtue of the fact that they exist at all and are not banned.
If you search for a NSFW subreddit, it will show in the results. Porn subreddits are easily discoverable, and not even close to being banned.
(Try it yourself: https://old.reddit.com/subreddits/search?q=asshole&include_o... versus https://old.reddit.com/subreddits/search?q=911truth&include_... - you'll see it's not possible to find /r/911truth in the latter search.)
Reddit removed all pornographic subreddits from /r/all. If you go to /r/all now, all porn subreddits are gone. You can still see the very rare NSFW post from a non-NSFW community, but for all intents and purposes all pornography has been removed from all public channels.
So much for reddits dedication to the male gaze!