It's a matter of efficiency. The Bug forum outgrew its original purpose. Forum champions, Moderators and some exceptional and dedicated users handle things that are usually known issues, have workarounds, or are due to people being inexperienced with Roll20. With millions of users, there are far too many issues to be tracked on a forum, so last year the dev team transitioned to using the Help Desk, since this automatically makes, assigns and tracks tickets. In general, the people mentioned above can handle a lot of issues, or have avenues to bring them to the attention of the team if reports proliferate of something specific. The forum still has great value, but should perhaps be renamed to "Help and Technical Issues".