A bee protects by using its' sting. A bee keeper protects by using a bee suit. I'm trying to improve my protection.
Small colonies are relatively easy to deal with. There are fewer boxes and fewer flying bees to defend the hive. Bigger hives are open for longer and they have more of the mature, defensive bees.
Everyone seems to feed their bees - even most of the low intervention bee keepers. I'm not convinced.
Bee keepers feed their bees for several reasons: