What is it?
This website has five different user levels, with each one allowing users access to different features unavailable to other users. Each subsequent user level has access to everything the level below it has, so an user can do everything a guest can, a tester can do everything both a user and a guest can, and so forth. These levels are intended to help maintain quality of the data on the website. You may request a change in user level to obtain access to options you want once you are a registered user.