Would a first line in any gig description, disclaimer like:
Disclaimer: I will not provide any services or accept to work in ways that violate any of Fiverr’s ToS.
Looks professional or it will magnetize trolls?
My thoughts is that psychologically you discourage potential rule breakers approach you, with funny,questionable requests, so works as a shield or a firewall.
Edit: Bonus: You save time from messaging people privately explaining what is allowed and what is not.
Feel free to express your thoughts on this and/or improve it.