pokemon bot and other bits (except music bot) maybe was fun, but now it's forgotten and don't used by anybody. But nsfw channel can exist, for content diversity.
And discord server have few pluses: in comment section you must wait half-day, one day or two for reply, in discord you get replies instantly. In discord you can post spoilers, secrets and other things (special channel exists), but comments are visible to everyone, and somebody can lose interest by reading all comments (but this have low probability, but ok)
Fireydeath and you just can not visit other channels you don't like, or say what you don't like.
Nobody talks about nsfw, it just was few spudid jokes.