Is there anyway to block or filter out off-topic threads from showing up in the forum in the personalized settings?
Sometimes I see a topic in 'latest posts' and it happens to be unrelated to FreeBSD
It is possible to apply the opposite logic, select only what you want to follow "threads or forums" (so in your case forums) via the function "watch" in the navbar on top.
It's not exactly what you asked for and surely a bit longer to settle but it can be a solution.