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", "Contract by using", "Unilateral termination", "Unilateral change", "Jurisdiction", "Arbitration", "Content removal", "Choice of law", "Limitation of liability"].