Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
```
we welcome and encourage you to provide feedback , comments and suggestions for improvements to the airbnb platform ( `` feedback `` ) . 

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