I don't even think there's anything wrong with using templates as a means to display your work in the given context, but there's just no way of knowing on the current interface if the app actually shipped or is just eyecandy, and that's why I assumed the latter on a lot of the entries.
Additionally, there's a drop-down to say you have experience with responsive, but there's no follow-up to that. Does that mean you have experience building the hi-fidelity mockups or are you actually building the media queries? Those are the questions I would have as a scout or how I'd want to distinguish myself as a designer, since a lot of employers either expect both skillsets or make them two entirely separate roles.
Sorry if I came off as harsh in the initial response, I understand the need for a service like this, but couldn't really tell how it couldn't be superseded by the current go-to for finding designers until there was a little more focus/drilling-down of projects/skillsets that the "competitor" doesn't give you the room to include.