I sent in a press release. .xxx promised that .xxx will get you a lot of promotion.
And it does
But banning icmregistry at shows, won't work. I am sure there will be promoters, domainers, webmasters, affiliate programs, pornstars, traffic companies, hosting companies, payment companies that will support .xxx or at least use .xxx domains. And that people might want to come to a show for more information. But using pictures of people to promote .xxx is not done. Especially when Ynot turned down sponsorship.