of Jeremy Corbyn being anti-Semitic, members of the Friends of Israel group are bombarded with opinion pieces that reinforce the statement; they will never get to see evidence to the contrary and what may have started as rumour and an exaggeration is on the way to becoming an uncontested assumption. The formula is amazingly effective: Facebook groups work to build walls around audiences that self-select based on their existing bias.
Whether it be about public health or creating public pressure on politicians to be less corrupt, governments increasingly need to figure out how to get their messages trending in the discussions they are not a part of. Some public interest groups are having success, but by and large, governments are so far behind the trends that it is very difficult to see how they will ever catch up to nimbler influencers.
Secondly, the Judiciary opts to use a scanned official letter making it so uninviting that it will never be shared. Third, even if the message was of interest and were well-formed, it will not get read on a page that is followed by such a small number of South Africans they do not even constitute a rounding error as a proportion of the audience that should be reached.