Hi, sorry for leaving you guys in the dark. There was words going around stake is removing tipping so poorbot was temporarily closed. However they reverted this decision and I had previously decided to not get it back up.
However, due to so many requests from users, I'll start it again with some changes. Thank you for your support and sorry for the inconvenience.
Poorbot will be back in end of this month. Fees will be lowered and some more coins will be added, and some internal tools for managing it. Thanks!