I am missing a clear sign that a Thread is closed. On 1.6 there was a Lock displayed, now there is nothing.
yes, clear lock is displayed for regular members and new reply button is shown for Admins & Moderators !
If a thread is locked users that can reply to locked threads see a red quick reply box.
All usergroups see a padlock on the thread status icon on thread listings.
^ for a locked thread, all user groups should clearly see that it is a closed thread.
color of quick reply box is not much helpful and quick reply could be turned off ..