Noobs shouldn't have a WH fortress.
A few GOOD people are welcome to have a WH fortress. This already exists without POS - if someone comes into your system, hop into 1-2 triage archons, 2-3 tracking dreads, 2-3 lokis/bhaalgorns, and you can easily rape an exponentially larger group (just make sure u blap the bhaalgorns first, or use your bhaals to win the capacitor war.
The issue that we have is that instead of leveraging their lower numbers to curbstomp a "blob", they're just not engaging and spinning in their POS. Without said "blob" putting a in a grossly disproportionate amount of effort(and very boring time) to kill their POS, there's not much else they can do. Noone likes bashing POS with subcaps, and noone wants to spend weeks camping a system to starve them out with absolutely no fights in between. (Only reason you'd do this is if you REALLY hated them, or wanted to invade their WH in which case they're fucked unless they pay my alliance a lot of money to come save them. =D )
This does not make for good or engaging gameplay for the odd passer by just looking for "good fights."
CCP should do something to make the "run to POS, hide/log off for a few hours" method much less effective, or counterable besides "setup cloaky dictor inline, bubble when u make urself known, hope their t3's arent nullified."