While we are on the subject of steeping and why we do it, the primary reason is to be certain that the juice has had a chance to mature to the point where it will have its most enhanced flavor, at least to the point that the recipe maker intended it to taste like.
I just finished reading Robino's blog (which was great reading, BTW), and she brought up the subject of the sense of smell assisting damaged taste buds to "taste" the flavors from our vapor. If you can recall from your junior high science class on how the nose collects information from molecules in the air, our sense of smell can give a big boost for us to taste our e-juice flavors, especially while they are still damaged from years of smoking.
When we are unable to do this, for instance when we have a bad head cold, our food tastes bland. The nasal airways are blocked and the flavor molecules from the food can not reach the nerve endings in the nose.
If we allow some of the vapor to exit via our nose during exhale, our nose will give an assist to our damaged sense of taste with its own interpretation of the flavor. If you are not doing this technique while vaping, give it a try. You just might find that some of those bland or mild flavors suddenly have a previously undiscovered "taste" to them.
too much to do in a limited time period and I need to keep up with everything going on in the forum, ya know? 
