The assessment, whether or not this is a commercial website by German law exceeds my juristical capabilities by far. To avoid violating any rules/regulations/decisions/laws, I try to follow all rules for commercial websites, e.g. I publish my address below. If you want to contact me however, please do that first via email: email@example.com.
Thomas Heckmann (aka tommi.port5)
Tel.: +49 911 8105106