I'm fine with them throttling providing:
1) They throttle excessive long term abusers not general power users.
2) Are perfectly clear about what is 'excessive'
3) Are perfectly clear about how much you will be throttled and what minimum speeds will be
4) Announce, via email the changes to their AUP a month before it goes into place so that users can cancel if they deem the AUP changes are not to their liking.
If I'm paying a consistent amount of money every month I expect consistency in the service.
I'd also like to receive notifications of Seacom failures, to my knowledge I have never received emails when Seacom has had outages, I just checked my email and from what I can see and remember I never received a single notification.
I'm not dissing MWEB - they have been very good in the past and the service is mostly reliable but I think we should be notified properly, I shouldn't have to read about major changes to a usage policy or about outages in the press / forums.