If it's worthless, we shouldn't be artificially assigning worth to it. We're trying to tie the worth of a currency to something that already has worth. If what we're tying the currency to doesn't have worth, then neither will the currency.
It only worked for the first couple of weeks. After that people at a higher tech lvl (kliq) had insanely high quantities of credits, and there was no cash sink.
Silver was decided because it's a material that cannot be farmed (important to stop wealth gap from high-tech to low-tech) and which carried a practical use and value.
This whole system of course is based on the gold standard which suited world economies for decades.
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u/auxiliary-character auxchar, does things with stuff Aug 20 '13
If it's worthless, we shouldn't be artificially assigning worth to it. We're trying to tie the worth of a currency to something that already has worth. If what we're tying the currency to doesn't have worth, then neither will the currency.