I have hermed males. Not intentionally; they were crappy individuals out of a Nirvana White Rhino seed pack. The amount of female sex parts on the plant does not justify the pollen contamination in the room.
Males DO NOT actually put on bud mass when they herm. You MIGHT get a gram or 2 of ridiculous seedy (if the pollination 'took') harsh crap, off the WHOLE plant, after picking through and painstakingly looking for the calyxes, loaded with pollen, whcih you don't want to smoke, ESPECIALLY if you have known allergies to pollen.
Not worth it.