You still have to keep secret the fact you are participating in the alpha test. We will have to wait for beta test agreement to see if it still holds true for the beta. If you're legacy member doesn't mean you are participating in the beta test.
Below is details from agreement that shows you cannot say you're a tester. Once the beta test agreement gets released look for this.
Alpha Tester’s Confidentiality Obligations
“Confidential Information” shall mean (a) any and all information relating to or contained in the Products, Software, Documentation, or other materials supplied to Alpha Tester by Company in connection with the Alpha Testing, including, without limitation, information relating to the performance, conditions, capabilities, and contents of the Products and Software, methods of reporting and conducting, modification schedule, modification process and its progress in the Alpha Testing, AND RECIPIENT’S FEEDBACK, OPINIONS, SUGGESTIONS, AND COMMENTS (POSITIVE AND/OR NEGATIVE) REGARDING THE PRODUCT AND THE SOFTWARE, (b) the existence and the terms of this Agreement, (c) the Square Enix ID and password used by Alpha Tester, or by any other Alpha Tester,
(d) THE IDENTITY OF ALPHA TESTER AND THE FACT THAT ALPHA TESTER IS PARTICIPATING IN THE ALPHA TEST, and (e) any and all information relating to the future or proposed products, services, or business operations of Company. Confidential Information includes, without limitation, all such information disclosed to Alpha Tester prior to the execution of this Agreement.
Alpha Tester acknowledges and agrees that the Confidential Information constitutes valuable trade secrets of Company and (subject to the other terms of this Section 2.6) agrees to keep Confidential all Confidential Information, and only use Confidential Information in connection with Alpha Tester’s participation in the Alpha Test.
http://support.na.square-enix.com/ru...a=1&tag=tester
This should be crystal clear now.