If that is the case we REALLY need you to join. Here is the thing, if you join and start submitting all the venues you work in, then someone else in your area joins and sees venues they are about to work in they will join and add new venues too. Before you know it there will be hundreds of venues in your area.
If you walk away ALL acts in your area lose out.
The more acts and venues the site gathers the more useful it becomes.
Like most acts you probably sit around for at least an hour waiting to start if not two hours. It takes 10 mins to submit a venue and you get the satisfaction of contributing to something useful to your fellow entertainers.