@Ruth welcome!
You can also send private messages to users, but usually it's open and for all to see.
I never used social media before DD, so I can't really compare...
@erdenpilger Thanks for your reply. It looks like a sort of public Christian FB where believers can share things in the Lord securely. PTL!
@erdenpilger What do you mean by not secure in a technical sense? Hackers can get in or what?