I've always thought of Snapchat as "hanging out on your back porch with a beer". On the other hand, I've never sent any Snaps to more than like... 3 people. Sending it to 250 is a bit like hosting the entire class from your school at a party, and then getting on a microphone and saying "F--- all of you and f--- cheer!" and then someone recording that on their phone and showing a coach.

I don't think it's fair to call her action "making a public post" because she did not make it public. Someone else did.