A kitchen knife's sole purpose isn't to hurt someone.
And neither is reddit's. I'm sure /r/programming, /r/mylittlepony and /r/NeutralPolitics, just to take a few examples, would find it very amusing if they see people accusing them of being 'incubators of hate'.
The article was talking about a specific subreddit and it's purpose, nice try though
The original title was "Reddit Is an Incubator of Hate" so some of the replies you are seeing are referencing the old title.
The original comment was talking about the website as a whole. Nice try though.