Donoreo
What you are missing is true, frame-based forum software. If the person is running this site is interested, a very powerful, free, frame-based software suite (Beehive) is available from: https://www.beehiveforum.co.uk/
The problem with this site is that it just doesn't look that good, and doesn't seem to be as easily configurable as others.
Main Features
Beehive Forum has a lot of features. The main ones are listed below:
Frame-based layout, for easy navigation.
Reply-to-user posting and e-mail notification.
Powerful HTML posting, without security risks.
Extendable user profiles.
Flexible relationships system.
Private Messaging system.
Multiple style options, including dyslexia support.
Advanced word-filtering facility.
Comprehensive user permissions.
Full, easy to use admin tools
I have used this software for many years and am familiar with the use of it from a member posting standpoint and as a moderator.
Full documentation, a demo forum and download links are available at the link posted.