Who are "foreigners" for you? That's a bad term on internet forums because people from all over the world use sites like HN, making "foreigners" somewhat meaningless/confusing.
"One of Google’s goals in Africa is to make the internet more locally relevant and bring more people online. One of the challenges of the internet in Africa is that there is a lack of local content online. At Google, we find that users search for information about local businesses, entertainment, health, etc but often don’t find it because the information is not yet available online. In order to help bring more local content online, Google engineers have created Baraza to allow people in countries across Africa to ask questions and post answers to questions from others."