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According to https://steemit.com/steemit/@cheetah/faq-about-cheetah it seems to be 'a sign of good faith'.

Not sure how else to answer this. Maybe you can get a better answer in Steemchat Channel of @steemcleaners.

This is very odd to me, it's rewarding the very thing is is there to stop.
Thanks for your reply ;)

Maybe it's to avoid putting off good users who might make an unintentional mistake. :)

No problem! Happy to help with my limited knowledge haha