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looks like his rc never recovers enough with that new system. he can't even comment "I want to undeleg.ate"

tipu has rules, go look at it...its been a long time for me but I think you should send 0.001 to tipu with memo "undelegate" o something like that...read the rules before doing anything...

I believe in a few days he should get back his sp

You can use steemdesk to undelegate without having to do use the rcs that a comment costs.