But if at any point along that path hoarders tighten too hard they'll drive goods and services out of this economy and put this process in reverse.
They're not hoarding, they're saving. If there is "too much" saving, prices will get too high, and some people will sell. If they are unable to sell due to high exchange rates, their asks will come down.
I guess I just don't see any problem here that won't be solved by market forces. I plan on hoarding some BTC, but I am also investing some into BTC companies and acquiring some more to sell to friends and spend on the BTC economy.
As a "hoarder", it's in my best interest for the economy to become as big as possible, not just for me to hold as much BTC as possible.
I had to actually read back and see what exactly my initial point of this argument was because I agree with your statement in bold. But my initial argument was that we are already at that stage where the exchange rate is too high and that it will have to come down first before the economy can grow at a faster potentially exponential rate and and that the sooner the hoarders realize this the sooner the influx of new goods and services will happen..
My point is that the current exchange rate is not realistic and already too high and all my posts was basically theory supporting why that might be true.