The ones who left Jehovah's Witnesses in my area almost invariably grew beards. I don't know what their reasons were, but it did seem to be a visible act of defiance for many.
I grew a beard, but not for defiance. I've always hated shaving. I hate the rough, itchy feel of shaven skin, the slimy, cold steel blade slathered across my face every morning, nipping and ripping and slicing anthing in the way. I mean really folks, will a true servant of god put his life and holy relationship with the sovreign of the universe needlessly in danger every day by wielding such sharp, death-dealing, disease purveying instruments of satan across his visible members every day? And this is only the beginning for folks who use such ungodly instruments on their face. It invariably leads to shaving unmentionable parts, and god forbid homosexuality and chess-playing!!
Back to reality now, I have no qualms about trimming my beard, and I do every other day--I just hate cold steel on my face. And don't even get me started on those over priced vibrator-wannabe-hair-jerking Nordics. groans in disgust