Every grow I've had so far I've trimmed leaves off. I understand why people choose to remove leaves. And to me it does make sense that it would in some ways be beneficial.
I mentioned trimming some leaves in my first journal post and it sparked a bit of a controversy.
In my honest opinion, I believe that towards the 2/3+ point of your flowering stage, giving your plants a light shake, or even snapping a few leaves isn't necessarily for increasing the production so much as speeding up the latter portion of the flowering cycle. When it's "assaulted" for lack of a better word, It strengthens itself like any living organism. As well, like any other organism, if you attack/wound it, It's still wounded and it is going to take time to heal especially if you go a bit overboard.
My next grow I'm not gonna be cutting or trimming or breaking any leaves off.
I also understand from the opposite side, that the plant uses it's leaves to feed, so removing them is essentially like adding an extra length to your oesophagus. It's going to take longer for food to reach where it needs to get.
So... In my conclusion... The benefits and drawbacks end up weighing even, so it just isn't necessary. You may end up with a few harder denser nugs on the plant, but the area in which you trimmed from isn't going to feed properly from that point on, and you will probably lose a bit of density and content in that area.