this idea maybe is good , but we cannot change any rule, so it is useless, stop to discussing it , I had loss much, I don`t want to lose all

We need to distinguish between property rights (which should always be secure) and
system functionality which must continuously advance, or die.
The minute we decide that we
cannot change to stay the best, a competitor will emerge that does not suffer under those constraints.
Would you really want the results of our latest R&D to go to a competitor because BitShares cannot change to incorporate it?
Otherwise, BitShares would suffer the ultimate fate of Bitcoin. Stuck roaring in the tar pits, failing to adapt, unable to compete.
Ultimately it is for the shareholders to decide. But the choice is never simply whether to adopt a new technology or not. It is always whether we want to allow some competitor pick it up and use it against us!