Interesting event means an event with foreigner or promising domestic DJs, less popular genre of techno music being played or something else that makes it different to boring "nothing new to offer"-parties and club nights.
Event list also includes selected club nights from the commercial promoters and other highlights not to be missed.
Also other forms of techno culture may be listed, like record fairs, exhibitions, live net streams, etc.
Interesting events create something new and different.
Some underground events are not listed - there are parties that should not be advertised in public event lists.