I met a Pirate Attack Fleet in Magec that had no weapons whatsoever (except for builtins) on any of its ships. Pacifist pirates?
Composition:
* Condor (flagship)
* Bull
* Enforcer (D)
* Longbow wing
* Dipteron wing
* Talon wing
* Buffalo
* Dram
very soon after starting a new game.
SSP + Templars + II + Blackrock + Omnifactory
Edit: another one, this time a bounty fleet.
Edit: Hah, this actually makes them more difficult to kill. All they want to do is run away, and most of that low-tech trash has burn drive systems.
Edit: Every bounty fleet (saw four) and about one in two-three other random fleets, pirate or not, appears to have been declawed.