The purpose of the ucoin project is to make a tool to allow communities to create “free money” as defined in the RTM.
It is a clear objective. And that is what I like about it. The objective is well defined.
By the RTM definition, it is said that you must respect symmetry over time.
But you will break it as long as you will change the rules for future users.
No matter who decided, rules are changed, old users are not equals to new ones.
So IMHO your proposition is not suitable to achieve the goal of the project.
But there is more…
In the blockchain, there is immutable properties in block 0.
This ones are totally secure.
It ensure symmetry in time for all users.
So if you authorize some properties to be changed, as mutable properties, you are weaker in term of security.
Any attackers, bad organized democratic crypto feasts, or clever individuals can try to change them in anyway they can. And they will…