I would say that there are two sides with this issue. The first is the fact, that inflation is typically exist, because the central bank (goverment) prints more money. Otherwise the currency rate would follow the economic development. When economic grows, the currency's value would raise, and when economic shrinks, the opposite.

The value the goverment gains in the process of printing money, is taken from anyone's pocket, who hold currency. And the more currency you own, more money is transferred to the goverment. In this way the question of the inflation rate becames a question of the tax rate. So ~ how high tax rate is acceptable.

A bigger problem with the inflation raises if people get sick of inflaction (~goverment stealing their money), and change the currency they use. Like I mentioned, the currency's value is related to the size of economy using the currency. When the economical area starts to shirnk, other people might panic and move away from the currency, thus increasing inflation and creating even greater motivation to abandon the currency. This might end in a collapse of the currency's value as well as a collapse in the economics.

- BtD

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"Freedom is the freedom to say that two plus two make four. If that is granted, all else follows."
[George Orwell, 1984]