We here at T³ always treat privacy with a high concern. Your data is and will always be yours. We'll never give it to 3rd parties neiter for free nor for payment. It's only used to allow a proper and legally secured running of tournaments and to give you the best experience on our site currently possible.
We've always been quite strict regarding the usage of real vs fake names. We won't change our basic approach on this, but lots of users and tournament visitors get in touch with us as they can find their names on Google or other search engines. We understand your concerns. Therefore applied some changes over the last days that names aren't world public anymore in our lists. Only registered users can see the full names like before respectively what each user's settings tell.
So Google and the world can only see your firstname and nickname, if you've got an account, or your firstname and the first letter of your family name, if you sign up for an event. You can try this yourself by logging out of your account (only if you still know your password ;-) or using a private tab.