Users are experiencing posting issues in a gear windage thread on the Mechanical Engineering forum, with some unable to reply while others can post without problems. One user reported getting a "Waiting for PhysicsForums.com" message, while another found that switching from Firefox to Internet Explorer resolved the issue. There are mentions of potential conflicts with ads or scripts on the page causing the problem. The discussion highlights varying experiences with different browsers, particularly Firefox and Internet Explorer. Overall, the problem appears to be browser-specific rather than a widespread forum issue.