That's a very unrepresentative link. Someone interested in moderation bias should filter on flagged comments instead, if some search engine supports it. Let's just say that it doesn't require a sociology degree to see it.
We can learn much about someone from the best of what they post, and it can help us to put their worst into context. I feel like your comment is more cryptic than it would need to be if you had a clear point to make or a clear idea of what we should do differently.