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