Fellow Commanders, I too have noticed a distinct lack of worthy targets at not only RES sites but also Nav Beacons. Firstly, if you think about it, Nav Beacons should be the natural haunt of any nefarious pilot as all ships coming into the system have to go through that point (could never understand why all the combat at a RES, those poor miners ...).
Secondly, think about it. Galactic war has broken out, various factions have consolidated their own space and are actively seeking out to expand and they need killers, they need traders who like to flirt along on the outside of the law. That is where all our highly ranked Commanders have gone, they are off playing Power Play and left the Res and Nav Beacons to those lowly ranked guys ...