What do you mean it's not a "true" gold standard? It's currency backed by gold. There never has been a specie system that has some absolute value. They have all had an arbitrary ratio that can ultimately be changed. Therefore, advocating we back money with gold doesn't fix anything. In the past, as it would be in the future, the ratio would just be altered, and thus any potential stability negated anyway. That happened during the reign of constantine and diocletian when they used metals. It happened in the 19th century during the Populist era, and it happened relatively recently.
Nowhere is there any "metal backed" currency that was actaully static. It would still be a "gold standard" because you are backing the currency with x ratio of gold to dollars.
What do you mean by "stable," because the price of gold fluctuates, and therefore, isn't actually stable. It goes up and down depending on finds, investment, usage, etc. It's only relatively stable long-term.
So, you really believe that the money supply can remain identical, regardless of the size of the economy or growth in population and the number of entities making transactions?
That any size economy can continue to funcion with no change in the supply of money?
Well, that's awesome, if you want a huge currency shortage and not enough to facilitate business.
The only alternative is to practice a debt-credit economy, which said system would devolve into anyway.
Fixing the currency at some arbitrary amount of metal your government can personally accumulate is both impractical and naive because it will be ignored whenever it's necessary, as it was in the past when the arbitrary amount of gold was too small for economic needs. The fact that every system that ever tried it couldn't possibly maintain it without altering the ratio or dropping it is evidence of the impracticality of the gold standard. The bigger the economy got, the less useful it became.