Comment by heavyset_go

This happens a lot, but I've recently worked with a couple of clients who are trying to own the communities they built after migrating to Facebook because "that's where everybody is".

Turns out FB is capricious and has no problem pulling the rug out from under those companies and the communities they foster on Facebook without notice or recourse. Pages and groups with hundreds of thousands of followers can be wiped off FB and there's nothing your business can do about it.

If I were in their shoes, I'd just use FB as a funnel to an online property that I own and control.