Anybody know the deal with luxcarnet.com?

They seem to have a lot of cars listed and while I was looking for a car I contacted them. They replied they had cars I was interested in but then never responded again. I had another party contact them and they were at least able to get a few pictures out of them but then once again contact just sort of dried up.

I've already bought a car elsewhere now, so it doesn't really matter any more, but I was just curious if anybody else has ever dealt with them and what the story was. If they were a scam I'd figure they'd have tried to hook me, not basically ignore me. If they're a real broker, why wouldn't they, I dunno, say, actually try and sell me a car?