When it comes to photography accounts, I think generally people like to get a bit of background on the photographers views. Remember that you are behind the camera and the internet is filled with images. What sets your image apart from the next is you. This is supported by the way you engage with those who take the time to comment and many people just go with the 'thanks' approach. From my perspective, the personality of the account is more important than the content which can be a bitter pill for some who want their content to speak for itself.