It is something that is a great exercise in developing a more detailed eye for photography. The observation in a critical sense of how an image moves you. Looking at elements of design, technique, creativity and expression through others images can help one to develop their own style to a stronger output. How to share that with others can be truly unique, with the writer being able to express themselves in their own manner. It is something I am still working at.
Agreed, and it is an excellent way of making you think about - and come to conclusions about - and articulate your thoughts about photography, and how something is portrayed visually, in terms of light, composition, creativity, design, expression, technique, what makes a good image, - and fidelity to the theme set for that week's competition.
However, while gathering my thoughts, I realised that I held views, or had thoughts concerning matters such as pictorial composition, that I had not known I held until the time came when I had to actually put my thoughts on paper for the competition.
So, yes, it was a wonderful exercise, and I thoroughly enjoyed it and learned a lot and was honoured to have been asked to do the needful in the apparent absence of the OP.