Jailbait was banned years ago, and now there's coontown. There's always something. Always has been since the early days. You're welcome to hang around /r/haskell and pretend you don't feel the smell, but it still rubs on to you.
By all means, leave. People that will leave a public forum because "someone over there is someone I really, really don't like and that every else around me also thinks is vile, but who I am not forced to talk to at any point in time" are generally not valuable users in a forum that is dedicated to open discussion.
You might think that's a bad analogy, but that's the reputation Reddit has garnered and I don't think it's insane to not want to be associated with it.