Yes, you will receive less than the 50% curation unless people remove votes.
Imagine this scenerio. Five people vote $10 on a post, this gives the total payout to be $50, $25 to author and $25 shared with curators. Everyone used $10 worth of voting power.
It gets downvoted to $25, basically reducing it in half.
Now every curator shares a pool of $12.5 worth of curation rewards but were previously sharing $25 pool.
If some people remove votes, there are less mouths to feed and you can potentially earn more, potentially even more than 50%.
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