The big deal in my case was that they might pollinate the other girls in the room. In fact, about half a dozen beans each were found on bottom c-99 and goji. That, and wasting the dedicated time and space.Hermie issues typically do not cause me terrible problems. Although, I have not run into a crazy hermied out plant yet. Worst I have had is my grandaddy purples ALWAYS (like clockwork) threw out a few dicks late in flower. Slowed down on the nutrients and flushed longer and they finally stopped.
Wasn't a big deal, gave me a few feminized seeds..