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It means even if people upvote you make $0.00 on that post.

How does that happen?

The author (in you case you" can elect to not get paid. The curators can still gt paid though. Here is more info: https://steemit.com/steemit/@steemquestions/declined-payout-what-happens-to-the-steem

i made post with payout decline for others to collect all revenue, all you need to do is upvote this post
https://steemit.com/steem/@drguru/100-revenue-for-upvote-on-this-post