Look, I'm not stubborn or silly enough to insist there aren't scenarios where it wouldn't be beneficial. A lot of heavy indica strains grow massive fan leaves that shade out all but the top colas - in which case, judicious pulling of leaves does benefit (and I have done it myself on occasion). Though I also need to point out that with vertical growing, the side of the plant is always lit, so there is rarely a need to pluck lots of leaves to allow light through.
But I've also seen some people pluck the bejesus out of their plants - like plucking chickens! - and I'm not entirely convinced of the benefits.
The times I've defoliated (as opposed to lollipopping branches), what I've noticed is that yes, there is less "larf" at the bottom, but the top colas don't get as big, either. There tends to be a bit more growth down low, but those lower buds are getting light that has diffused more and is weaker. What has always worked - and it's been proven for eons - is scrogging to maximise bud sites in an even canopy. I said as much quite a few posts ago.
Perhaps I have confused the issue by talking about two different techniques.
@Johnny Lawrence did point this out, so perhaps I should just leave it at that