I personally hate these sort of lectures and perhaps it’s because I’ve seen too many of them. When someone tells me they are a photographer I often like to look at their images. However, once I start hearing a lecture about why/meanings and stuff I turn off. If I look at pictures by Atget, Kertesz and the like, or even much less accomplished photographers, I can often understand what they are doing or trying to do. I don’t need to read a dissertation to appreciate or make value judgements about an image.