I've never really had much interaction with POCOs or other structures aside from POS'es. I know my way around a POS, most of the permissions (and pain associated with that) and how to do most POS related things.
I learnt something new today thanks to Trinkets Friend.
Have a read of the story, it explains much of the background and more importantly the hilarious trolling to that has gone on. Sure the eve-mails have flown but I've never, ever, heard of using POCOs as a method to troll someone.