I guess this discussion would probably be rendered moot by market forces, anyway.
Say someone developed an awesome new protocol change, and rolled out the new currency in the way that I've described. There's no way anyone would accept if if the source was closed, so this leaves open the opportunity for a competitor to turn around and immediately release the peg-free, floating version.
I think regardless of how it went about solving the initial adopter problem in a reasonable timeframe (probably a blockchain fork), it would be a battle in the public arena between SpeculatorCoin and StableCoin. Sure SpeculatorCoin could destabilize StableCoin just by proving to be a worthy competitor, but I hope people would see that they're being unnecessarily punished financially simply because they weren't quick enough to upgrade their damn software, and would boycott SpeculatorCoin, and vilify its adopters.
And it would surely only get one attempt before people got fed up with the unnecessary instability IMO.
StableCoin also going for it the fact that it developed and is maintaining the damn software, and SpeculatorCoin is just a dirty thief.
Then again, the roles could be released, and SpeculatorCoin developed the software that StableCoin is trying to use...
As it seems to be Bitcoin that is the one speculators flock to, I guess "speculatorcoin" here means Bitcoin, and, yes, it therefore is the case that "speculatorcoin" developed the software that some "stablecoin" or other might choose to use.
I find the idea of destroying bitcoins that are spent to buy "stablecoins" very weird though, because I imagine that being able to "back" one's newfangled "stablecoins" with Bitcoins might be rather useful.
It is rather a pity that it is Bitcoin that has so far filled the role of being a "speculatorcoin", I wonder if it is almost inevitable that whichever coin "the masses" are most aware of will fall into that role? I had often imagined that real bitcoins might be or become far more valuable than the various pocket-change coins used by kids for pocketmoney and by consumers for day to day out of pocket spending. It even seemed that the more "complicated" and "mysterious" real bitcoins are the more the common masses would drift away to pocket change coins of various kinds, leaving the truly valuable "actual bitcoins" to the major pillars of the financial world, the big edifices that "back" the various pocketmoney systems.
If the people who had hundreds of thousands, or millions, of Bitcoins choose to "cash out" to fiat and walk away, they would basically be treating the whole system as a ponzi scheme instead of truly demonstrating by their own actions of "backing" it using such fiat that they are able to get for it that they were and are serious about supporting it as a real currency, the currency of the people who minted it, sold it for fiat, and thus now have huge hoards of fiat with which to "back" it.
Alternatives would seem to me to look a little more serious if they retained any bitcoin they aquired to hold in trust as "backing" for their new coin than if they destroyed bitcoins they aquired.
Most of the players who seem serious about the various new currencies they have had me working on for them seem to agree that they want to aquire plenty of any blockchain based coins they can, so as to have a nicely variegated treasury with which to "back" their favourite type(s) of coin.
Indeed part of why they do not like the types of markets that Bitcoin seems to regard as standard or normal is such markets deprive them of the ability to choose who they buy from or sell to. Not just for prejudices along the lines of "We are the Elves, Orcs are enemies, therefore we will not sell Elfincoin to Orcs nor trade Elfcoin for Orccoin" but also things like "we see no evidence that you have been retaining the fiat you have been aquiring and putting it back into the system therefore we do not want to sell you any more fiat".
-MarkM-