As with most SASS products what you gain in convenience you lose in terms of control. Specifically from their Terms of Use policy:
Setting Up User Accounts
Users are responsible for providing accurate information in setting up user accounts.
Accuracy of User information is of essential importance for utilizing member accounts as well as for the security and consistency of the system.
Easyclass.com reserves the right to block an account or delete the account with all its contents in the event any personal information is not provided in good faith, such information is false, indecent, immoral or a violation of any personal rights. Easyclass.com reserves the right to pursue any legal claim in the existence of claims based on any violation of personal rights claims.
Student users are not allowed to change their names and surnames once they are submitted.
User records are based on e-mail adresses provided by users. User defined names, surnames, nicks and avatars are not restricted or supervised. In the event of same or similar user names or nicks, user accounts will be distinguished with reference to e-mail adresses.
For the security and consistency of the system, educators, moderators, students and/or attendees are not allowed to deactivate or delete their accounts with all of its’ contents from the system. Users are required to contact the system administration for deleting user accounts. Easyclass.com reserves the right to delete the account and remove its’ contents or may refuse the request to delete the account in the event of usage in bad faith.