As a way to make that visible to Facebook (probably someone there is looking at that thread, but your vote count isn't visible...) - I would totally pay for FB also, at the price that linkedin or others are proposing.
My demand would then be data security, no advertising. Other users could stay on free service, but the apps they use shouldn't have access to my data anymore.
Yes, I think maintaining a free service would be necessary, much as LinkedIn does. Freemium seems to be working well for LNKD in a way that might be a potential way forward for FB.
My demand would then be data security, no advertising. Other users could stay on free service, but the apps they use shouldn't have access to my data anymore.
EDIT added mention to invisible votes