I voted "keep" on all of those nodes (as well as the others that have recently been considered "delete, troll" or "delete, flame") - not because I'm tittilated by shallow controversy and petty flamage, but because I think that's a pretty poor reason to remove content.

I guess it hinges on your definition of "content". By my reckoning, most troll nodes carry the same relevance and value as true, word-for-word duplicates.