Pegs don't work, won't work, never work. I agree that trying to keep something's value locked in at a certain exchange rate is pointless and history tends to show that pegs are meant to be broken. The only reason why SBD was originally designed to be a dollar is because the makers of BTS/STEEM thought they could be the shiny new dollar-pegged coin on the market that would draw all the investors who wanted something that could hold its value. Obviously that hasn't panned out very well for BTS/bitCurrencies and SBD, and every coin designed with that in mind has had its peg broken, or had to take extremely shady measures to maintain the appearance of a stable peg.