Social login functionality was implemented through the social login provider Auth0 on June 13, 2018. The existing database was cleaned up to remove the many duplicate- fake- and unverified email accounts. Accounts with on-chain transactional history were migrated to the new system, and other users could have their account imported by logging in before November 30, 2020 with the original username and password credentials. On that day, sign-up functionality was discontinued and it was no longer possible to import older inactive accounts.