I did fly around with some Reward Cargo for a while (accidentally, forgot they were still in my Trade Python).
Well, turns out I became an ELITE NPC Interdictor Magnet, even in uninhabited Systems. They were after me - everywhere - as if I was full of Low Temperature Diamonds and Painite.
60% Hull and alot of Turn & Burn later, I realized I had those 8 tons of Reward stuff. ~4000Cr worth or something.
I very rapidly dumped them into the Commodity Market.
-> useless to me as I can't store them, they just increasingly drag me down and prevent me from utilizing smaller and Combat Ships entirely
-> carrying them around is too troublesome due to apparently having some huge "Shoot me Please!" Decal on my Ship
Is this effect only for the cargo, or are the new materials I'm scooping going to get me targeted also?