Privacy Policy

We are

Responsible person: Sebastian Bitzer.

This website’s address is:

You can reach us under

What personal data we collect and why we collect it


When visitors leave comments on the site we collect the data shown in the comments form, and also the visitor’s IP address and browser user agent string to help spam detection.

Note that you do not need to reveal your true identity to leave comments on this website. You are free to use pseudonyms as name and fake email addresses, or decide to not provide any of this information.

An anonymised string created from your email address (also called a hash) may be provided to the Gravatar service to see if you are using it. The Gravatar service privacy policy is available here: After approval of your comment, your profile picture is visible to the public in the context of your comment.


If you leave a comment on our site you may opt-in to saving your name, email address and website in cookies. These are for your convenience so that you do not have to fill in your details again when you leave another comment. These cookies will last for one year.

Embedded content from other websites

Articles on this site may include embedded content (e.g. videos, images, articles, etc.). Embedded content from other websites behaves in the exact same way as if the visitor has visited the other website.

These websites may collect data about you, use cookies, embed additional third-party tracking, and monitor your interaction with that embedded content, including tracing your interaction with the embedded content if you have an account and are logged in to that website.

Who we share your data with


Our hoster provides us with the following services: infrastructure and platform services, computer power, computer memory and database, security and technical maintenance services. This is necessary to make this website available to you in an efficient and secure manner. For this purpose our hoster processes the data that we collect, as well as your meta- and communications data accruing when you access this website.

Akismet anti-spam detection

We use the service “Akismet” of Automattic Inc., 60 29th Street #343, San Francisco, CA 94110, USA. This service helps in discriminating genuine user comments from spam comments. For this purpose all comment-related information such as the entered name, email address, IP-address, the content of the comment and the browser user agent string will be sent to a server in the USA where it will be stored for a limited period of time. You can find further information about data collection and usage by Akismet at

How long we retain your data

If you leave a comment, the comment and its metadata are retained indefinitely. This is so we can recognise and approve any follow-up comments automatically instead of holding them in a moderation queue.

What rights you have over your data

If you have left comments, you can request to receive an exported file of the personal data we hold about you, including any data you have provided to us. You can also request that we erase any personal data we hold about you. This does not include any data we are obliged to keep for administrative, legal, or security purposes.