Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
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we have the right , but not the obligation , in our sole discretion to edit , refuse to post , or remove any user content . 

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. OPTIONS: ["Arbitration", "Limitation of liability", "Choice of law", "Unilateral termination", "Contract by using", "Unilateral change", "Content removal", "Jurisdiction", "None"].