I have not seen one since my only encounter two days ago. I regret I did not have video recording, but I managed to get one nice pic - moody 
At this point the rocks around the beam were suspended and motionless... awesome sight.
I have a few ideas on what is going on - yes the flower ships are harvesting. Perhaps they are harvesting meta-alloys but with out the destruction that usually comes with humans doing it. Maybe meta-alloys are the alien version if Indium? Perhaps they are harvesting to build something big out there out of Meta Alloys.
Just a thought

At this point the rocks around the beam were suspended and motionless... awesome sight.
I have a few ideas on what is going on - yes the flower ships are harvesting. Perhaps they are harvesting meta-alloys but with out the destruction that usually comes with humans doing it. Maybe meta-alloys are the alien version if Indium? Perhaps they are harvesting to build something big out there out of Meta Alloys.
Just a thought