While I agree it's hard to validate many of the tweets, taken in aggregate they do give a reasonably good indication as to what is happening on the ground which is great for news junkies like myself.
Recent local economic analysis on how holding the IPL cricket in South Africa this year is going to save the country from a negative growth scenario this year is laughable. I, for one, look forward to getting some solid international viewpoints from the BBC on the economic crisis in developing countries.