I haven't run a packet sniffer yet, but it looks like Hannidate is on the same server as Hannity.com. No outsourcing, just a generic commercial dating package that wasn't customized.
Although you'd think the install for a decent dating package of the caliber that Hannity should buy would have an option for allowing or disallowing same-sex choices. I'm not surprised though, as I've seen huge organizations pay a lot of money for pretty bad software.
You might be able to find one at Hanni-date....