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Which personal data we collect and why we collect it


When visitors write comments on the site, we collect the data displayed in the comment form, as well as the visitor’s IP address and the user-agent string (which identifies the browser), in order to support spam detection.

You can create an anonymous string from your email address (called a hash) and submit it to the Gravatar service to see if you are using it. The privacy policy of the Gravatar service can be found here: Once your comment is approved, your profile picture will be publicly visible with your comment.


If you are a registered user and are uploading photos to this website, you should avoid uploading photos with an EXIF GPS location. Visitors to this website may be able to download photos which are stored on this website and extract their location information.

Contact forms


When you post a comment on our website, you consent to have your name, email address and website stored in cookies. This is a convenience feature that avoids you having to re-enter all these data when you write another comment. These cookies will be stored for one year.

If you have an account and you sign up for this website, we will store a temporary cookie to see if your browser accepts cookies. This cookie contains no personal data and is discarded when you close your browser.

When you log in, we will set up some cookies to store your login and viewing options. Login cookies expire after two days and cookies for display options after one year.

If you select “Stay logged in” when signing up, your login will be maintained for two weeks. Logging out of your account will delete the login cookies. If you edit or publish an article, an additional cookie will be stored in your browser. This cookie does not contain any personal data and only refers to the post ID of the item you have just edited. The cookie expires after one day. Embedded content from other websites Posts on this website may contain embedded content (e. g. videos, images, posts, etc.).

Embedded content from other websites behaves in exactly the same way as it would if the visitor had visited the other website. These websites may collect information about you, use cookies, embed additional third-party tracking services, and record your interaction with this embedded content, including your interaction with the embedded content if you have an account and are logged in to this site.

Analytical services

Who we share your data with How long we save your data for When you write a comment, this comment, including metadata, is stored indefinitely. This is so we can automatically detect and approve any subsequent comments instead of keeping them in a moderation queue. We also store the personal information provided in the user profiles of users who register on our website. All users can view, modify or delete their personal information at any time (the username cannot be changed). Website administrators can also view and change this information.

What rights you have to your information

If you have an account on this site or if you have written comments, you may request that we export your personal information, including any data you have provided to us. In addition, you may request the deletion of any personal information we have stored about you. This does not include the data we need to retain for administrative, legal or security-related purposes.

Where we send your data

Visitor comments may be investigated by an automated spam detection service. Your contact information Further information How we protect your data What measures we offer for privacy violations Which third-party providers we receive data from Which automated decision-making and/or profile creation we carry out with user data Presupposed disclosure obligations of the industry