South African Bandwidth

[john levin]

Very OT, but I know there's South Africans on this list, and anyway, the 
sounder is for OT stuff.

I was reading this article
http://www.tectonic.co.za/viewr.php?id=637
about MLDonkey, when I read:
"If you happen to have an offshore server at your disposal, this makes 
for an interesting exercise in avoiding South African bandwidth 
limitations – you can simply log on when a file is done and download it, 
without using South African bandwidth for uploading or for failed 
downloads. "

What are these SA bandwidth limitations? ISP limits? Weak 
infrastructure? Or what?

TIA

John