South Africa's national telco monopoly has rolled out a terrible, hollow mockery of DSL service. As Martin says:
Certain ports on an ADSL line are 'prioritised', meaning all the others are basically useless. A 3GB cap is enforced per month. Line speed is 'deprioritised' after you have been capped, meaning your line is useless for everything but browsing local sites.
South African geeks are trying to get their government regulators to pay some attention to this: the telco is keeping the country in the technological dark-ages in order to preserve its dinosauric bizmodel, and the whole national economy is at stake if South Africa ends up largely off the Internet grid as a result of malfeasance and incompetence. The MyADSL site is a place where South Africans can share stories and hatch strategies for making a difference.
(Thanks, Martin!)