You can disable your account by following these steps:
- Make sure you are logged in to your WordPress.com account.
- Go to the Disable My Gravatar page.
- Click Disable My Gravatar to confirm you want to disable your account.
Disabling your account deletes your Gravatar data and removes access to Gravatar's settings. You can re-enable your account at any time.
If you wish to permanently close your account, you can do so by closing your WordPress.com account.