Bob, I believe that when people introduce blue-clickies that point to old threads, it is only meant to add to the discussion. I don't think it means that since it has already been discussed that there should be no further discussion.

New discussion of a subject is always welcome, and the information in the old threads can still be germane to the new discussion.There is lots of info out there from people who are no longer with us.Read them,enjoy, and continue with the new.

rr