It's a good concept, but it's not very developed yet. For the future, many many more dares need to be implemented, and lots more harder dares. i know i'm not here for dares like "Dance with a mop or broom," or "Wear your underwear outside your clothing." The search should be able to be filtered by level of dare (IE: G, PG, PG-13, ect) and possibly a filter by dare type. If you needed the help, i'd be glad to sort dares or really do anything to help out.
All in all, it's a good idea, but needs a lot more work. (which is understandable, since it's still in beta ^_^)
-Daredude.