It's explained here: https://medium.com/gratipay-blog/gratipay-2-0-2453d3c53077#.qjmwp1bf1 https://medium.com/gratipay-blog/gratipay-2-0-2453d3c53077#.... tl;d

It's explained here: https://medium.com/gratipay-blog/gratipay-2-0-2453d3c53077#.qjmwp1bf1 https://medium.com/gratipay-blog/gratipay-2-0-2453d3c53077#.... tl;dr: In order to comply with AML laws, the terms of service were changed and individual accounts were removed in favor of team accounts. If individuals apply for a team account, their tips are migrated and money will start flowing again; most individual accounts have not done this.