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No clue since there is no precedent. Steem is the first of its kind.

IIRC @paulag did post regarding this issue some months ago, and reckoned that the rewards pool eventually becomes entirely consumed by bots. I dimly recollect that in the comments there were discussions of some misapprehensions and errors in her calculations, but I don't recall if these invalidated her original conclusions.

This is what I see happening, and I don't see anything able to stop the eventual total consumption of the rewards..

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