Additional ways to troll.
Go to the thread and accuse people of being normalfags / roasties / trannies / Grinchfags immediate drama. No way to prove they aren't so it starts infighting. Saying a list is from /soc/ is good too.
Post a list containing baby clothes and gloat pretending you're a single mother getting gifts. You can "buy" a gift from it then cancel immediately after for maximum salt. Gloat in the thread how much you're getting and how good of a mother you are.
Point out the similarity between lists. This year Beef Jerky, Swords and a few other items are shared by a few lists. Accuse of same fagging multiple lists. Like wise claim any lists you can't grinch are Grinchfags trying to scam anons. It sows paranoia.
Attack weebs any way you can. Call them trannies, pedophiles, whatever it takes to get them angry. AIDF will turn up to white knight them and shit in the thread
Call people greedy for wanting lots of items or high value items. Switches are great targets for this and you can tell them to grow up.