Half the internet isn't forums devoted to stalking and harassing people.
What exactly is inconsistent about their banning of services? Is there another site which is on their radar, which does what kiwifarm does, and they've come out and stated they will never ban them?
Half the Internet is indeed forums where bad behavior is taking place though. Reddit, for example, has plenty of bad (often illegal) behavior on it and the moderation is far from aggressive. You eventually go down the rabbit hole of gradations of moderation and "how much" moderation you'll require.
What exactly is inconsistent about their banning of services? Is there another site which is on their radar, which does what kiwifarm does, and they've come out and stated they will never ban them?