Thank you, I will look at previous posts. If you could, it would help me greatly if you could suggest either some specific threads or good keyword searches to find these posts.
I agree with you that anything over 10,000 in *tags* says that some reanalysis is necessary. However, my scenario assumed I was using tags, in a sense, as a substitute for creating pure hierarchy-based info organization. I would much rather use tags as they are meant to be used in all info management systems.
My project work has been going on for 25 years and truly does require tens of thousands of hierarchal l