Let me start by saying that your "can't do" attitude is reproachful. If I listened to everyone who told me that "you can't do this" over the last 2 years, we wouldn't be here debating the finer points of a system that, on its surface, solves or reduces a hundred different problems with bitcoin. And perhaps fiat too. Bitcoin presumes the financial incentive is not there to attack the network, or that it is difficult to surmount for some entity for which money is little object. There is no lesser presumption in decrits. Your see-sawing between "it's 51% attackable" to "it's completely inept" to "it's not anonymous enough" is a complete waste of everyone's time, including yours. Let me be stupid if you think I'm stupid, but go on your merry fucking way.

If, on the other hand, you are actually capable of changing your opinion, stop acting like a toad and start presenting arguments cohesively and in a focused manner, and perhaps progress could actually be made. Sor.rge and I have had a very productive conversation over PMs without you being the distraction that you have been since you arrived.

Now you may have noticed that I set up a little trap for you "upthread" by asking you what EvilCorp does in step 6 to control the network, and your answer was "well he controls the SHs he controls". We already know this. Yes, he can delay transactions, yes, he can delay other SH TBs if he controls enough in a row, but he does not control the network at 51% or at 90% of the shares.

Now, if this was proof-of-work or proof-of-hard disk, EvilCorp needs only control resources he may already control from say, attacking another network. But the only way to control decrits is to own decrits, something that can not be obtained anywhere else other than from within the network. So even if in the remotest of remote possibilities, someone does take control of the network and destroys it, whatever resources EvilCorp used to take control are now forever gone. He had to spend his fiat, or if a government printed fiat into hyperinflation to perform the attack, that government has essentially been overthrown. No government can stay in power without a sane monetary system. c.f. ROMAN EMPIRE. And now the people can just clone decrits, hell perhaps even agreeing to use the state of the network as it was before EvilCorp destroyed it, and destroy evilcorp's shares, and continue to prosper. No, this is not a simple transition, but it is a permanent fix to a temporary problem. EvilCorp has been eliminated regardless of whether or not the network continues in another form.

So, since EvilCorp/government is unlikely to perform this network destruction attack--as they go down with the ship--they will attempt to control. Except, to attempt the control you describe, they must continue to buy up shares in dramatically larger quantities than honest people. Being the "last TB" is mostly irrelevant. If he doesn't like what he sees, he can make 1 more opportunity for 3,000 DCR. He can make 2 more for 6,000 DCR. He can pick from what a GPU that can hash at 1MHash/s x 10 seconds or 10MHash for 30 billion decrits if a share costs 3,000 DCR. 30 billion decrits versus a millipenny of electricity. Are you going to continue to presume that these have the same difficulty to obtain?

And once he does find something he likes, he can't change the entropy after that unless he can throw another X million or billion decrits into the pool. And the options of what he might like boils down to "what few SHs can I give some strikes to?" He essentially has to buy everyone out of the currency before he can control it. All using a very simple, deterministic function. And he can't just withdraw and try again. Shares are not kept for 1 year as described in the OP except not really ever because then it suits your attack vector. Shares must be kept for 1 year or else you will lose your money. Your money is your control, not your hash power or your hard disk size. If you lose your money, you lose your control. Get it yet? If you don't keep adding or subtracting money from the system, you also lose your control. Get it yet?

This can even be extended to be even more difficult to obtain control of the last TB, if that truly is identified as a weakness. Program the function so that only the oldest 20% of the SHs are capable of creating the last TB. Now using removing money from the shares results in a multi-year penalty for each SH repurchased, or you'll have to control >80% just to have the opportunity to add billions more in shares to control the order. Meaning that adding shares and keeping them longer is the only way. And you must. keep. adding to continue controlling the order at a rate of 3,000 DCR per hash attempt.