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

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