A lot of that "hyperinflation" is actually circulated in the community and steemers are incentivized to hold and build up their voting power so they can have a greater say in what gets upvoted and who gets rewarded. Holding the steem power generates more steem power. The incentives to hold long term are much greater than to cash out! This isn't the same thing as the inflation in fiat currency systems.
Hyperinflation has many purposes obviously, the main one is the ability to reward users just for posting without recourse to advertisement.
My point though is not what is the purpose of it, but can 100% inflation be sustainable in the long run.
On a side note, im not sure everyone ask me to go back and reread their posts, if anyone had actually answered my question i wouldn't be here anymore. I certainely did not read any compelling explanation so here is the question again
how holding powered steem would protect you from hyperinflation ?
It doesn't protect you from hyperinflation.
Which is why this is unsustainable in the long run.