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With a large enough stake you can bring attention to your profile by a) increasing the chance of your posts reaching the hot page and getting more views and b) by getting your account noticed by the votes you give out.

Curation rewards are about 25% of the post rewards, but tend to go disproportionately to the larger voters.

No, I won't delegate to people who excessively self upvote. I am offering a comparably low price so that people don't feel forced to self upvote to recoup their investment. The repeat custom rate is 1/4 the cost of the default price on MinnowBooster.