It's ok to exclude them also. I can't ask everyone, but since ICOEthics on my custom list, I think there is nothing wrong to ask him.
I didn't mean in that way.
You have included ICOEthics because his feedback is trustworthy to you. Assume, ICOEthics included user 'A' whom you don't trust with his feedback. ICOEthics may trust and that's why he has included. Since you don't trust user "A", simply put him ~A in your trust list. That's it. All the purpose will be fulfilled.
1. You want to see ICOEthics feedback.
2. You don't want to see user 'A' feedback.
3. ICOEthic wants to see user 'A' feedback.
I think that's how DT works.