Public User Access
No personally identifiable information is kept or stored that would link back to you except merely an IP address if abuse is suspected.
When members sign in, a cookie is placed in the usual places cookies go (no, not your belly) to maintain your sign-in info. If a member creates or edits an article, that member's username/info is saved with that article as part of the article's historical record.
No information is shared anywhere else outside of what is available through the article's historical record. And this sharing is only done through the availability of the historical record.