I'm clueless about that. I know it's an attack vector we probably don't need to sweat right now, but just ignoring it and doing nothing? That ain't good. You really think we should just chill and leave it?

You think inserting one item is more expensive for the db than doing many joins across many tables to view many items, like for a huge comment section?

(We added pagination for comments because @ken's contest did indeed turn out to be a problem.)

you're just doing inserts into the database tables with those zombie items. That's a whole different thing.