Not saying it is for everyone and every grow...but at the end of my grows, my tent is fucking dirty. There is a thin later of dust and shit and God knows what else on everything. I gotta clean my fans, lights, walls, trays, humidifier, floor, hygrometer, cables...fucking everything, right?...if I gotta clean all that shit, it ain't no problem to take 20min and wash my bud too.
I've heard some people say washing your buds may also prolong the drying phase...Although I live in a dry climate, I did not find that to be the case...In more humid conditions I would suspect this could have an effect. But like anything else in this game, what works for some, does not work for others.