So the title says it all....can pirates move between systems?
I made a custom map with 4 systems. One system I loaded with pirate bases (6 of them). Then I have one race per system for the other 3.
I have had the AI put bounties on me and apparently the pirate raids have left their bases numerous times to attack me....however I have yet to see any pirates in my system. I have scouts around the suns of my enemy AI systems to monitor for this as well and they have neve seen pirates either.
I did some forum searching and looked over the first few pages of hits, but could not find any solid evidence stating that pirates CAN or CAN'T move between solar systems.