While I appreciate the spirited debate and varied opinions, here is the bottom line per the official RRDB policy which was recently clarified by the lead admin:
"Location unknown" sites are not to be listed unless the location can be confirmed down at least to the county level. They can be added to the wiki page for the system, but not the database, until the location is confirmed by monitoring at least to the county level.
"Location unknown" sites are not to be listed unless the location can be confirmed down at least to the county level. They can be added to the wiki page for the system, but not the database, until the location is confirmed by monitoring at least to the county level.