the OP himself i would say.
and since they are currently running a signature campaign managed by yahoo [https://bitcointalk.org/index.php?action=profile;u=355846], i would not doubt its credibility.
because yahoo only deals with legit project. i can vouch for that.
and if he learns that there are shady activities going on with this site, he will immediately terminate his services.
so i would say, dont worry about who's the operator of this dice site.