I have known Tim, since Summer 2014, through helping a few cryptocurrency related groups in parts of Africa, including SLLG, and Dream Bitcoin Foundation. We have been working together one these projects since then and helped form the African Umbrella Trust Organizaton Network (AUTOnet). We met on the last day of the TNABC 2015 and enjoyed dinner with fellow members of our organization. We have become friends and I trust Tim completely.
I met David online and over Skype several months ago when I began my early stages of communication with several groups in Africa beginning to use BTC: (Mustapha Cole of SLLG: Sierra LEone Liberty Group, Philip Agyere of BDF: Dream Bitcoin Foundation, Ghana; and Alakanani Itireleng - AKA: Bitcoin Lady Botswana). He was reaching out to the same people, so we became friends online. Those early communications have grown into a project, now in “alpha” stage, called AUTONet: African Umbrella Trust Organization & Network. Dave is on our team (amongst about 10 others). I finally met Dave on the last day of North American Bitcoin Conference (TNABC) in South Beach, FL (I live in CA). Had dinner with he and his lovely wife, as well as some of the AUTONet Team, including Dean (CT) and Tawanda (from Zimbabwe). I like him :)