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I believe these bots can serve a great purpose though, by using them to boost someone elses post as a sign of support. A little extra beyond an upvote, and maybe they could/should disallow putting the boosts on one's own posts.

That's the great thing with @promoted, the other day I boosted someone's post by promoting it, I payed 10SBD, their post got promoted and they got an upvote worth about $6 win win win except the money doesn't go to @promoted, so no one is getting rich of it :)