I as a miner have problems with PoBs inside mining fields. Coz while mining my mining lazers do hit the base even if i aim the rocks (they hit the rock, go through it at angles and do hit the base)and then i'm hostile to the PoB and have to move. The PoB not only denies the field to pirates but also to people not affiliated to the base(as in my case)So yeah, moving Pobs away from the mining fields gets my vote.