No. It has always been the case that you retain copyright to your own posts but give the SDMB non-exclusive rights to reuse them. Posting anonymously would make defending your copyright more difficult, but that can be overcome or Max could just sign his name.
We do not claim ownership of any information, data, text, software, music, sound, photographs, graphics, video, messages, tags or other materials you submit for display or distribution to others through the Services, including any such materials that you submit through Interactive Areas (collectively, “User Submissions”). As between you and us, you own all rights to your User Submissions. However, you grant (and confirm and promise to us that you have the right to grant) to us and our affiliates, representatives, sublicensees and assigns an irrevocable, perpetual, non-exclusive, sub-licensable, royalty-free and fully-paid, license (sublicensable through multiple tiers) throughout the universe to use, distribute, syndicate, license, reproduce, modify, adapt, publish, translate, publicly perform, create derivate works and publicly display your User Submissions (in whole or in part) in any format or medium now known or later developed; provided, however, that our exercise of our rights under the foregoing license shall at all times be subject to the limitations upon disclosure of your User Submissions imposed on us under our Privacy Notice.
To put it into the terms of the terms, you are completely, utterly, irrevocably, jaw-droppingly, carrot-munchingly, anti-macassar, unpatriotically, throughout-time-and-space wrong about our giving you ownership.