Hell, you could even write a utility to spuriously create HN accounts, stuff them full of comments that will be deaded but still accessible, and use that as a data store.
Whilst there is some "hacker spirit" to it, it is absolutely, totally a dick move. And yes, it is like shitting in the urinals, then smearing your shit all over the taps and the mirrors, because why the hell should the rest of us be able to use the facilities for what they were supposed to be used for, if you can have your fun for a few days?
We need a new name for this. It's not "Tragedy of the commons", it's more like "Tragedy of the common troll".