The User hereby grants LingoDeer a perpetual, worldwide, non-exclusive, free and transferable right to make such content available to the public and to modify it in and to all content, like vocabulary listings, manuals, advertisements transferred to and published on LingoDeer.</p> <p>7.3 LingoDeer may at any time remove or delete any content published by the User in its own discretion.</p> <p>7.4 Being of age and proper registration via a User account is a prerequisite for posting contents.