An improvement to what we already have IS a change. That is a definition of change.
When I was an Administrator here and we were implementing the kamra, and then later the thanks system, there was a LOT of discussion behind the scenes about it. Andy and Alix will remember this I am sure. We discussed it for weeks if not longer. There is no simple answer. Everyone likes different things and you are never going to find a system that satisfies every single person.
Just because the staff has not responded does not mean this has eluded them. Of course it does not mean that they are discussing it either.
As Andy said, tenure has nothing to do with anything. Every member here equal from the moment they sign up. One person does not have more of a say than any other.