Personally, I think it's one of the best unofficial "rules" out there. If anyone has ever dealt with government on any level, they know how much of a pain it can be. Personally, I feel that it's pointless to go asking permission to use a park as any other person would when they would never have to ask permission to use it themselves. Granted, many municipalities have policies in regards to geocaching and they should and must be followed, but for those areas that don't? Cache away I say... What say you?