Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
```
4.2 you agree not to impersonate any other person while using the products , conduct yourself in an offensive manner while using the products , or use the products for any illegal , immoral or harmful purpose . 

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