People drain swamps and other areas where stagnant water collects to deprive mosquitos of places to breed and grow and affect the population at large, not because they want to visit those places.
Please take some time to reflect and interpret other's comments charitably and arguing their strongest interpretation, not their weakest. It'll help you understand others better and make your own arguments stronger and contribute more productively.
That seems like a great analogy until I remember that we built DC on a drained swamp.
Again, their statement was that if it involved pain then it was unacceptable. I pointed out boxing, they mentioned concentual. I pointed out that the user consented when they visited the URL.
I mean, come on... The two big ones were coontown and fatpeoplehate. What the hell did they think was going to be there?
It's not the content of the subreddits alone, but they inevitably "leak", or actively encourage harassment of people on other subreddits. This is how they can be harmful even to people who never go to the banned subreddit.