PSA to others who come across this thread: Absolutely be collecting email addresses and general contact info (with their consent of course) of your fans or page participants so that when the platform disappears, you have an alternative method to reach out. Ideally, you have them sign up to your mailing list as a call to action on your Facebook page (or other social media).
Social is a great discovery tool, but you want to offboard these folks to contact and publishing systems you control (mailing lists, sms lists, Wordpress, etc) for the day that your page or other social page gets nuked.
Social is a great discovery tool, but you want to offboard these folks to contact and publishing systems you control (mailing lists, sms lists, Wordpress, etc) for the day that your page or other social page gets nuked.