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You paid 11sbd to upme. This post now has a value of approximately 10.5 SP. This will result in just below 8 sbd author reward. Which means a loss of more than 3 sbd. And I didn't even take the other votes into account.

This was caused mainly by the fact that this bot was probably already overpaid at the moment when you placed your bid.
So you could check upfront of a bid would be profitable or not. But even then there are no guarantees.

Another thing you could do is post in the last 5 minutes of the bidding round. And then by the upvote.

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