If you are registered, you get access to the members only section, can participate in the buy & sell second hand forum and last but not least you can reserve your preferred username before someone else takes it.
I don't often take pictures of the moon, but I have a new camera and it's a full moon tonight. So what the heck. This is with the 70-200mm and a 1.4x extender and 2x hybrid zoom, and generous cropping.