You need to understand the screen displays.
1. When new content is posted to an existing thread, the header is displayed in bold type. Once you click on the thread again (to see the new content), the bold comes off.
2. If 100 different people have viewed the thread, that number will be listed on the right but will not change even if the thread is viewed a 1,000 times by those same 100 people. This is different from other forums which list each separate viewing regardless of who actually looks at the thread.
I think your question assumes that, in the example I gave, that there is no interest in the thread because the "viewers" number hasn't changed. If that is your impression, this may change your view. 😉
If a new question comes up, it might well mean nobody interested in the thread has an answer [Gad-zooks! Woodworkers at a loss for words? Impossible!] If you ask such a question and don't get an answer, it would probably be best to bring it out on the main board.
m