Facebook is indeed good for many things, including for plant lovers with questions about their babies!
I love plants and gardening. Lately I have had an issue with my Plumeria and so I took photos and put them in one of the Plumeria groups I belong to on Facebook - I got a response within minutes and more information has been coming in non-stop.
It isn't just Plumeria plants that have their own pages. My Hoya plants have special groups as do just about any type of plant you can think of. You can post photos of problems and get free advice from others across the globe that have similar plants and are members of this group.
I also use Facebook groups for my essential oil questions and many other things. It isn't just for stalking my kids (although that is just one more reason to be in there :-) ). If you aren't taking advantage of all of the diverse groups in Facebook, you need to reconsider how you use this social media giant.