I think this suggestion should be discussed in its own thread as a singular issue.
Regions that do NOT have an existing Founder that at some point gets passworded. Either at some time before his demise, the Founder put a password on the region, or an active Delegate installs a password. It took a Founder or Delegate to put it there. I think it should require an active Founder or Delegate to keep it there. If a passworded region should ever lose _both_ Founder and Delegate, then the password should automatically withdrawn.
If the residents want to keep their region passworded for their protection, all that is required is for two of them to have a WA, and then one endorses the other.
The obvious effect of this is that it forces invaders to invest in the resources to keep a "trophy" region locked down. [Think of it as garrison troops to maintain the Occupation.]