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I dont think so. If u cant trust the peg its useless.

Think about people that want to use sbd to be able to plan and manage their cost ?

Not exactly true. A minimum-peg guarantees the lowest price, but lets the currency go up as high as it wishes (a minimum peg from one perspective is a maximum peg from another. For the purposes of this response I'm using the minimum peg terminology to mean that the lowest SBD price is $1).

From that perspective, if the ecosystem can guarantee you that the lowest price you'll ever receive is US$1---but you may get more---is arguably is as good as a system that guarentees that you'll only get US$1.

Very true