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So as a person powers down their vote weight for witness is automatically reduced to the amount of vest they have? Thank you I did not realize that, I thought the vest weight at time of vote stayed until next vote. Thank you for helping understand that better.

Yes witness, proxy, and proposal (DHF) votes adjust immediately down to current stake (when powering up, the new stake is delayed from voting for 30 days). Votes on content stay as they were at the time the vote was made.