I never understood that urge of people to do "fan pages" (or fan anything, without the permission of the original creator) while at the same time blatantly ripping content.
You'd think, or hope, but GoDaddy and other actors proved over the years that this is not the case. I think that the kind of site most impacted by an event like this are social sites, where if people leave, they might take their networks with them. But a normal b2c service provider just needs to update their PR and prices and business will be back to usual.