Although I am not a big fan of virtual caches, there are many places that are just not suited to tupperware. A virtual cache can be a good way to bring people to a spot they may never have visited otherwise. However if the cache page says that you need to supply some bit of info to the cache placer to prove that you visited the cache, then it should be up to the placer to make the required password or info unfindable without a visit. It should also be up to them to decide whether a log is valid or not. Remember what Drew Carey says on Who's Line Is It Anyway, "The points don't really matter".