what on earth does, "is she a good baby" mean?

Clarissa • Mama
Like.. she is almost five months... She doesn't light things on fire but she cries a bunch? She sleeps through the night, but she can't say please and thank you? lol 
Like. EVERY person (including humans I don't know) asks me this and I'm just like, "Yeah...?" Would anyone say no? lol
People crack me up 😂😂
And here she is silly hair and all for good measure 😂😍