YES! There is no commitment to sign up and you don't need funds in your account to get on the notification list, however we would recommend having a funded account. There are games that have a lengthy wait list and it's first-come, first-serve. Here's how it works: If someone cancels, and someone almost always does, you can be notified by e-mail and sign up right away.
Follow these steps to get on the list:
Click/tap the name of the game you want form the main Games page.
Check the box at the top that says "Get notified when a skater slot opens up."
That's it! When a spot opens, you will receive an email at the address you've specified on the Account page on the Notifications tab.