Every forum other than Piriform get this one right :-
The very first link is always to the topic, and normally to the latest post in the topic.
After this is the new content including any links in the new content,
followed by the Unsubscribe link.
Piriform get it wrong.
The notification requires me to scroll through however many pages of new content and skipping over content's links,
until I finally get to the link I need - and sometimes I overshoot and accidentally unsubscribe.