If even one of you gets a post removed during one of these bit struggle sessions you failed the bit and should feel immense shame. Doing a bit successfully is Praxis.
Find things to struggle about that doesn't get out of hand. It's important to let off some steam now and again but do it in a way that doesn't harm your fellow comrades or add work to the mod team.
I'll start: Some beans are better than other beans. Like kidney beans are bad nasty icky beans but black beans are actually amazing.
I think that puffing requires high pressure, sort of like a pressure cooker, to achieve except in the case of popcorn because it's capable of achieving a similar level of pressurisation through the kernel that you'd get from a pressure cooker.
In the air fryer I'd expect them to come out like those roasted chickpea snacks that you can sometimes get.