I often wonder how many people have thought about inflation as a tax on the poor. It hurts those with less discretionary funds the most. I also think it's ridiculous what the government does and does not include in it's inflation calculation(s).
However, it does affect those whose expenses rise and a) are on fixed income or b) don't get raises as quickly and frequently as the prices of everyday needs increase.
Inflation also reduces the value of old debt in relation to current income.