Price floors and price ceilings create shortages. It doesn't matter the context.  Currency pegs are just price floors/ceilings... kind of both at the same time and therefore the worst of all possible worlds.  They exist to be broken by the market.  

... I had a huge reply half finished when I realized it would just be better as a full post.

https://steemit.com/steem/@goldgoatsnguns/on-price-floors-sbd-s-and-how-to-run-a-steem-arb-fund

My instincts tell me you are correct, sir.