In this context, I'd like to know:
Some virtual caches state that they can be logged after a question about the location is answered, and the answer is confirmed as correct by the hider.
What if I know the answer without visiting the place, mail it, and get confirmation, does it count as an ethical find?
For regular caches, I consider the physical find of the box and the signing of the log as the criterion, but that is irrelevant for virtual caches.
What if I have been at that location in the past, or even more than once, or drive by there every day?
But also: what about the idea of figuring out the answer to the question without ever visiting the place, via maps, web searches, phone calls, etc.? This is, in a way, a much greater challenge than a physical cheat-visit to the place, and it allows caching in places where one would never physically get to.