May 14, 2017
Replied to a post on github.com :
I've read that it was something they tested out last year in select markets around Mother's Day. It's possible that it was brought back today again for Mother's Day on a limited basis. https://www.theverge.com/2017/5/13/15635974/mothers-day-thankful-facebook-camera-flower-reaction-instagram https://www.facebook.com/help/community/question/?id=10207656192377271