As an online shopping platform, eBay usually does not actively clear personal accounts unless users choose to cancel their accounts. If you receive a notification about account cancellation, it may be due to the following reasons:

1. Violation of platform policy: If your account violates eBay's terms of use or policies, such as fraud, copyright infringement, posting prohibited items, etc., eBay has the right to terminate your account.

2. Long-term inactivity: If your account has not been used for a long time, eBay may decide to close these accounts for the sake of maintaining the activity and security of the website.

3. User self-application for cancellation: If you no longer need to use the eBay account, you can apply for account cancellation through the official process. After cancellation, your account information and data will be permanently deleted, including purchase records, sales records, reviews, favorites, account balances, etc.

If you receive a notification about account cancellation, it is recommended that you read the notification carefully, understand the specific reasons, and take corresponding measures according to the prompts. If you think your account has been cancelled by mistake, you can contact eBay customer service to appeal and resolve. At the same time, make sure to back up important information before canceling your account to avoid unnecessary losses.