[Suicide Junkie]

SJ, if you allow raiding fleets to enter your empire, you haven't defended yourself properly.

Chokepoints certainly help in that regard, but can be broken through.

Even if the enemy dosen't have a fleet large enough to wipe out your defeses/blockades, they could send a bunch of raiders in with "don't get hurt" orders, and with 1/4 of them at each corner, a good number should get through to wreak havok behind your lines.