I've read a lot of posts and seen a lot of pictures today, and some have left me wondering what to say about them. I'd like to let the poster know I was there, but I don't have much to contribute. I don't want to be the tenth person that says, "I agree." Some posts seem to say it all, leaving little left to be said. It would be so much easier if posts ended with a question to spark discussion.
What do you think is the best way to encourage people to make comments?