Good morning,
I have the feeling that Facebook may be very close to making a company ending mistake.
Despite all the negative press Facebook does provide a useful tool for many people and most of its users don't see it as an editor/restrictor of their content. They accept that the cost of using the platform is advertising and data mining and that's a fair price for getting an expensive service for free.
But if Facebook get into the position of saying to their user's we won't host this content you have to use other services or sites then this carries the risk that users will reconsider their relationship.
Facebook can no longer be their choice for filtering Internet content into a usable size because Facebook wants to restrict what you can see and do on its platform. This could result in a big change in the user's perception of the platform, it is no longer neutral it is telling me what I can and can not do or read.
Changing user's routines is dangerous, they might realise that there are alternatives that suit them better.
A significant user exit wouldn't end the company immediately, after all many businesses use it successfully as free web hosting so these businesses won't want to leave, but Facebook has massive operating costs which probably can't be covered under that sort of model.
If you had to pay for your Facebook page then I suspect that many businesses would opt for a web site.
Facebook's advantage isn't that it has special technology, it's simply market dominance and as MySpace, Friends Reunited etc have shown this can disappear very rapidly.
Bye
Ian