Thanks for mentioning Ziki! Ziki is growing fast and, as you write, people search is only our core service. We bring out new functionalities nearly every week in order to satisfy the growing number of Ziki users.
As an example, we recently launched a VCard export service which allows you to export all your networks personal data as a VCard file or a feature enabling you to monetise your content through Ziki.

there might be a ethical problem. like ‘one an offender, always an offender’. of course i would like to know how dangerous my neighborhood is. But these offenders, they’ve made mistakes,should they be given another chance? No one want to bear that mark forever, does it?