tl;dr I don't care about your data
The reason why websites often collect a lot of data from you is that they use personalized advertising. They set third-party cookies, track you through their partner sites and show you interest-based ads to increase their profits.
As all content on this site is free and I have no plans to ever make money from it either, I don't have to know anything about you.
The site is completely usable without providing any personal data, except for the guestbook and the contact form. Of course I need your email address there to answer you, right? 😊 However, since there is no obligation to enter your real name, these functions can also be used without entering any personal data.
When visiting this site, no tracking cookies are set and only standard server logs are generated, which contain your IP address, browser name, clicks, operating system and country. There is no linking of your IP address with other data. These server log files are necessary for the proper operation of the site.
Long story short: I have no interest in your data. I have no use for your data. I don't want your data. Apart from standard log files, which are automatically generated during your visit, nothing is collected or analyzed from you.