Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
```
you will not remove , alter or obscure any copyright , trademark , service mark or other proprietary rights notices incorporated in or accompanying the airbnb platform , airbnb content or member content . 

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