If you only read the Jimbojw.com website, no more information is collected than is typically collected in server logs by web sites in general.
If you contribute to Jimbojw.com, you are publishing every word you post publicly. If you write something, assume that it will be retained forever. This includes articles, user pages and talk pages.
Although logged-in users may edit talk pages and their own user pages *, the ability to create or modify actual articles is restricted to privileged users.
* The ability for unprivileged users to modify talk and user pages may become unavailable at any time and without notice.