If you're going to call me "crazy", I'd appreciate it if you had the courtesy to address their arguments I actually made, rather than ones I didn't...
Obviously if I thought wealthy people actually did hoard their wealth in dollars I wouldn't have made the point about inflation inducing people not to hold their wealth in dollars. Wealthy people could, would, and probably should hoard large portions of their wealth in dollars in the absence of inflation though.
I didn't making any points about people not wanting to consume if the money is deflationary, because obviously there are limits to how far one would want to defer consumption. Consumption /= investment. Investment is based around getting returns, and if average return is zero then there's very little incentive to invest instead of hoarding coins for those neither certain of beating the market nor particularly enthralled by taking risks. US prices oscillated wildly between 1600-1910 so it was hardly a sustained deflation in which burying dollars in the ground was the most reliable way of ensuring continued purchasing power in a couple of years time, but it's worth noting that growth was a bit more impressive after 1910...
Three. The whole point of the "sticky wages" argument for inflation - one I didn't actually make - is that as relative prices in an economy shift, the real value of some workers' contribution falls, but they still have bargaining power sufficient to ensure this subset of the labour force doesn't accept wage cuts (they take job losses instead). A corollary of this is that productive workers in growing industries can and do have sufficient power to demand higher annual wage escalators, and inflationary increases to payscales are commonplace in normal economic climates. Nothing about the sticky wages problem implies that wages relative to labour productivity of a segment of the economy can't catch up with inflation, in which case the median worker can ask for and get accept their annual inflationary pay rise.
But I haven't mentioned the sticky wages argument. Actually I went out of my way not to mention the sticky wages argument, by giving a theoretical examples where wages were all indexed, and emphasising the importance of inflation in providing investment stimulus was far more significant than its distributional effects.
As for point four, I'm honestly not sure whether you're deliberately misunderstanding me to make a rhetorical attack or genuinely don't understand that "investment strategy" and "encouraging people to ... spend more money on stuff they don't need" are not the same thing, and the poor generally benefit a lot more from the rich investing in job creation than the rich buying nice little cabinets full of gold.