Wikipedia vs Medium

Anything you contribute is generally public and forms a permanent record tied to your username or temporary account. This can create lasting privacy and reputational consequences.

You can read and even edit without a standard account, and a normal account usually needs only a username and password. This materially lowers the amount of personal data you must hand over to participate.

Wikimedia expressly says it does not sell your information or share it for third-party marketing. That is a strong privacy commitment compared with many ad-supported platforms.

Photos or videos may include device metadata such as time and location, and that can become public unless you change your device settings. Users can accidentally reveal where or when media was created.

If you contribute content you own, you generally license it for broad public reuse under free licenses and cannot later unilaterally revoke that permission. In practice, you give up control over future reuse of your contributions.

The policy says personal information is kept only as long as reasonably needed and is often deleted, aggregated, or de-identified after 90 days. This is a meaningful retention limit for nonpublic data.

Users can request access, correction, restriction or objection, deletion-related help, and a copy of their data for transfer. Some data controls and downloads are also available directly in account settings.

Legal claims against Wikimedia generally must be brought in San Francisco County under California law, and claims may need to be filed within one year if that is earlier than otherwise allowed. This can make disputes harder for non-California users.

Wikimedia provides the service and content without warranties of accuracy, safety, availability, or fitness for a particular purpose. If information is wrong or the service fails, your remedies may be limited.

Substantial privacy policy changes get advance notice and a 30-day public comment period. This is more transparent than silent or immediate policy updates.

The service uses cookies, local storage, JavaScript, and tracking pixels for security, analytics, and functionality, but says it will not use third-party cookies without permission. This is less aggressive than many sites, though still not tracking-free.

Most disputes must be handled through individual arbitration in California, and class or representative actions are waived. That can make it harder and more expensive to bring a claim, especially for small harms.

Any dispute must be filed within one year of when the claim arose, or it is permanently barred. This is much shorter than many users would expect and can cut off claims if you wait too long.

You keep ownership of your posts, but Medium receives a worldwide, royalty-free, sublicensable license to use and adapt them across its services. Practically, this allows Medium to reuse your content in ways you might not expect, though it says the license is limited to its services.

Medium collects account details, your posts, reading history, device identifiers, IP address, and activity data, and it also uses cookies and web beacons. This creates a fairly detailed profile of how you read and interact with the platform.

Medium may stop offering the service or features, limit storage and distribution, and suspend or terminate accounts with or without notice. Users therefore have limited assurance that access or published content will remain available indefinitely.

Medium states it does not sell your personal information, which is a meaningful privacy benefit compared with services that monetize user data that way. It also says California users can opt out if that ever changes in the future.

You can access, correct, delete, and export your account information from Settings. That gives users a practical way to retrieve their data and start closing an account without having to file a separate legal request.

Medium shares personal information with vendors, service providers, and other users, and says those vendors may scan and review your content, messages, AI interactions, and metadata. That means your material may be exposed beyond Medium itself for processing.

If you interact with embedded third-party content, the third party can collect information directly from that interaction. Medium says it does not control that collection, so off-site tools like videos or embeds can create separate privacy exposure.

Medium explicitly describes GDPR-style rights for EEA, UK, and Swiss users, including access, erasure, objection, restriction, and complaint rights. It also names how to contact a regulator if issues are unresolved.

For EEA users, Medium says account data is deleted within 14 days after account closure, which is relatively clear. Other data may still be kept longer for legal or business reasons, so deletion is not total.