Defensive patent pools exist, if that's what you're saying: Unified Patents, LOT network, and RPX are a few.
Defensive patents don't really help against trolls since they don't actually make products. That means that they don't infringe on any patents and thus your defensive portfolio doesn't get to play.
I'm confused. Do you mean a patent that patents 'patent trolling'?
Way too much prior art, no?
And we want people using the patents, so you'd have to actively troll...
Yes.
I can't parse this sentence. I even tried reading out loud. I thought maybe to=troll but still I can't understand it.