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Yeah, but tell me, how it's possible for inactive accounts get reputation over 50 so quickly ? That's because bigger reputation account had voted them, so they are working together to get the rewards, so easy to see.

You get a higher rep by upvotes from accounts with a higher rep.
But the upvotes from commentrewarder, leo.voter and splinterlandbooster might have helped getting a higher rep I think.

Mmm that it's a failure I think, bots should not have reputation itself if that it's the case.