[atomicson]

We forget, the main reason we post a comment is to be read by others. So there's nothing wrong because it is "you" wrote the comments and it is "you". Sure you already read their Terms of Service (ToS) before embedding their product in your website. There is no free lunch as there are some costs to develop and maintain a product. If you are a coder, develop your own commenting system is not hard. They just do what they do for survival, like everybody else.