and most of the solutions that will be provided here are complete and utter crap
I can't agree more....

The most common use of meta's is to publicise something, why would you want to hide that? Then there's the ability to determine what robots can do.... You either want that or you don't, if you don't then don't include the tag.... there are other ways to look at the site without being a robot. Then there's authoring info etc. Well if you don't want it to be public don't put it out there....

The more I think about this the less I understand the question... Web pages and their content are public if you stick them out there on the internet.... If you don't want it public don't put it out there.... No matter what you do it's out there "swinging in the breeze" for all to see....

More information as to _why_ might help but for now you have me, (and some others I'm sure), stumped......