I would love it if the JSE would apply special formatting to closed threads.
Threads that belong to tags that I'm watching get a yellow hightlight. I can immediately identify these in the list.
Closed threads, however, have the same formatting as regular threads. This makes them visually harder to weed out and ignore.
Suggestion: Apply italics, and use a lighter gray color for the text of closed threads (in the main listing on the front page). This would improve site usability by adding an immediate visual indicator that a thread is closed, in a way that is easier and quicker to see than the current markers like "[closed]" / "[duplicate]" appended to the end of the title.