So I've come to learn that something + だね means something along the lines of "Is it __?" with an expected yes answer. I received this kind of comment as a response to a photo I posted on the internet. What are some common/friendly ways to respond to this?
I think ね is sort of rhetorical, and I'd only answer it if I was talking to someone in person. Even then, the answer would probably be something perfunctory like そうだ, just to feign attentiveness ;)
I could be wrong; I learned this from Tae Kim, so you can check out that reference and see if it helps. Also, the example sentences at Tangorin and Jim Breen's WWWJDIC come off as making it sound rhetorical/for flavor, in the same category as よ and ざ.