Honey bottles are unstackable, this makes crafting honey block painful, as you can't bulk craft full stack of them and ingredients take much space. Full chest of honey bottles is not enough to make 7 honey blocks. This is most painful crafting recipe up to date. It also lefts empty bottles in crafting bench, so you are forced to manually remove them or use recipe book.

I know that some people would tell me it's not a bug, but as Mojangstas are lately making crafting easier (stonecutter, cartography table), adding this is just... rash.