You can choose whether or not you want your birthday to be displayed to everyone on the forum. If you choose to have your birthday displayed on the forum, members will be able to know when your birthday is coming up to wish you a happy birthday! It's understandable that this may not interest everyone on the forum, so with that in mind, the software does offer you the ability to either partially or completely hide your birthday info from your account.
To do this, click on the Profile button found in the top menu bar. Next, on your profile page click the Edit Profile button. You'll then be taken to the Edit Profile & Settings page; once here, click the Privacy tab. Toward the center of this page you'll find the option for Birthday Visibility followed by a drop-down menu. You can set this to one of the following options:
Show full birthday (e.g. December 29, 1982): With this set, anyone who views your profile will be able to see the month, day, and year that you were born.
Show month and day (e.g. December 28): If you choose this setting, anyone who views your profile will be able to see the month and day that you were born, but the year is hidden. Other forum members will see your birthday in the forum's calendar, but they won't be able to see what your age is.
Hide birthday: With this set, no one will be able to see your birthday information on your profile. Your account will also not be listed in the forum's calendar.
Once you have the settings adjusted to your liking, click the Save Privacy Settings button found at the bottom of the page to save your changes.