Great info!!!
This is something I've been trying to understand for some time, as I frequently find this kind of players, and I must confess they "get me the nerves". I mean, I don't mind loosing to AK's , but loosing good hands to J5 unsuited really gets to me. My reaction to this things is to play tighter, but the way you put it makes some sense!
I never explored the concept that they actually have no idea what they are doing, and could think it's ok to play like that.
I'll keep that in mind when I find them again, wich will be today for sure

thx for the great post!