Base Fights and Your NPC Primes

[Thaal Sinestro]

I'm pretty sure NPCs and other "I'm not here" defenses only slow down the attacker. Recall stations are one of the major factors in that. I can't recall a more official ruling on that, but as far as I feel like the "spirit of the rules" goes, any kind of defenses left at your place will only slow another Prime down as opposed to really deterring them.