Rules cause passive aggressive response

So I posted this to Facebook earlier...
and my grandmother had to weigh in. To me, her response is a bit passive aggressive since everyone else is commenting "your baby, your rules".
She's crossed out in purple, me in blue.
I know I'm probably overreacting, but this is the same woman who flipped out on me for referring to the baby as "lil monster" once, and likes to put her two cents in on EVERYTHING that I put on Facebook (including yelling at me over a reposted picture I thought was funny).
How would you react? What would you think if someone did this to you?