Agreed, the trust system is unmoderated so I doubt its against the rules, but good luck getting on the default trust list in the first place if people know you plan on selling false trust to people.
The trust that people give you for the proposed idea, wouldn't be undeserved, it would be based on their own opinion of the "ethical ramifications"
Could you comment on how you would deal with my advertising this service on the forum, regardless?
Nope. You'll find out when it happens.
I'd give you negative trust.