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Privacy Policy

Last updated: 2026-11-06 · Applies to the Booth-Comment browser extension and the boothpl.alicevrc.cn service

1. What this is

Booth-Comment (the “Service”) is a third-party commenting and tagging tool that shows community reviews on BOOTH item pages and lets people search items by tag. The Service is not affiliated with BOOTH (pixiv) and does not represent its views.

2. What we collect

  • Account information: username, email address, a hash of your password (one-way argon2; we never store the plaintext password), and a system-generated user ID (uid).
  • Content you post: review text, ratings, images, tags and your tag votes.
  • Technical information: IP address, browser user agent, a device identifier (randomly generated by the extension for registration and commenting rate limits), and timestamps of actions.

The Service uses no cookies, does no cross-site tracking, and includes no advertising or third-party analytics. Exchange rates come from a public API (open.er-api.com); only currency codes are sent, with no personal information.

3. How we use it

  • To provide core features: signing in, posting reviews, rating, uploading images, and searching by tag.
  • Security and abuse prevention: detecting bulk registrations from the same network or device, and limiting review and vote spam.
  • To contact you: transactional emails only, such as password resets and email verification.

4. Where data is stored

Our servers and database are hosted on Alibaba Cloud (Hangzhou, China). Uploaded images are stored in Alibaba Cloud Object Storage Service (OSS) in Tokyo, Japan. The database is backed up automatically every day, and the backups are kept in the same OSS.

5. What we do not do

  • We do not sell or rent your personal information to any third party.
  • We do not use your email address for marketing.
  • We do not use review content to train models.

6. Retention

Accounts and content are kept until you delete them or request account closure. Security logs (sign-in and registration attempts) are kept for at most 90 days. Database backups are kept for 7 days locally and 30 days in the cloud.

7. Your rights

  • Access and correction: you can change your username and password in the extension’s Account settings.
  • Deleting content: you can delete your own reviews directly from the comment panel.

8. Changes

When this policy changes, we update the date at the top of the page. Material changes are also announced inside the extension.

9. Contact

Email: alice@mail.alicevrc.cn

Booth-Comment · Third-party tool · Not official BOOTH