Contractually, you cannot use Gandi to register domains for any sites hosting user-generated content nor any content of your own which violates their ethical code. Upholding their ethical code is part of the agreement you must enter to register a domain with Gandi. If you do or support any "deviant uses of the internet", they have the right to take your domain away. It's the strangest agreement and I'm continually surprised people choose to register domains with them.
http://en.gandi.net/static/contracts/en/g2/pdf/MSA-1.3-EN.pd...