I just dont feel that there is any actual reward for even going near a black widow den… aand i think it would be neat to be able to harvest poison from spiders if your butcher is high enough.
Even though it would be absolutly usless on zombies, Npcs are a thing right XD
I mean, I usually just behead hostile NPCs with a shotgun, because if they happen to have a gun they can easily end your game in two or three moves, but I suppose you could poison them.
Don’t spider- and wasp-infested homes have a chance for more valuable loot than a normal home? Scientific oddments and such.