Just an observation on a snow day

Why isn’t it acceptable for teachers to vent about having a bad day at work (without breaching confidentiality, FERPA, etc.) without getting inundated with “You’re a horrible person! So glad you don’t teach my child! Quit if you hate children so much!”?

However, parents can post all over social media about how hard it is to watch their own kids on a snow day and that they can’t wait for them to go back to school because their own kids are driving them crazy. That’s considered acceptable.

Thoughts?