I am also on aquafina!!
Support ticket is opened already, but no response!!
And I think people would mis-understand this with "overselling".. its obvious ! because if they have even reserved 5% of the space for user as compared to what they offer, this might not have occured.
Even I would say, if admins are alert enough, this would never occur. The problems since 3 hours on a webserver having no space and affecting so many users, surely gives some bad smell.
Think of an urgent situation!! What a person can do? Seems to me that this forum is just for customers like us. there is nobody from DH watching these posts and support requests put through panel, are not answered (at least till now, its not!)
Even I tried to make server check for my domain's parameters in all areas and I got mail that there is no problem system wide (domain wide) might be that does not include the space measure ! I think they should do something immediately.