Just let everyone in your contacts list know that you are making their details available to the world on the Trucaller website without their permission. Everyone can see what network they are on and the name associated with that number.
For example +27823711799 is listed as Jacob Zuma on Vodacom. And Trump is +19177568000 on Cingular.
Let them know that they can request their info be removed by going to http://www.truecaller.com/unlist
Thanks for the heads up. They require that I reinstall the app so I can deregister first. What bs.