light leaks are also air leaks, and air leaks can be possible odor leaks. it would best to seal it as best as possible.
i would like to know why the moon is an exception to this rule, if true?
Me too.
My guess is that the moon isn't a great reflector... Only a small portion of sunlight hits it, lots of energy is absorbed by the surface, and what is reflected is diffused by the convex shape of the moon. Then it has to make it through the atmosphere, etc.
But that's just a guess.
You have to admit that bathing in the glow of the moon is a lot different than having one pinkie finger bathed in a bright pin-hole streak of light. That particular spot is very likely to pop balls, depending on the particular tolerance of the plant.if a plant needed absolute darkness in flower then surely the moon would effect outdoor grows?