- Anyone can create and send as many of these transactions as he/she likes.
Money must be either scarce or based on the credit of the issuer (LETS, ripple) to work.
No (noteworthy) inflation due to increasing moneysupply is to be expected, as one should be crazy to create more money if it's worth less than the cost of production. No (noteworthy, long-term) deflation is to be expected, as coins will be produced when appearently necessary.
This is like saying that we all should be allowed to counterfeit dollars and there would be no inflation because no one would print them if their price goes below the production costs.
Also, bitcoin miner's calculations are the source of the bitcoin security. What those generating calculations are for? Just wasted resources?