La categoría predeterminada de Wiki debería llevarte al primer mensaje

[sam (Sam Saffron)]

completed per:

Navigate to first post after topics are read, category setting

Per this commit categories have a new setting that allows administrators to amend the behavior of fully read topics. Out-of-the-box logged-on-users will navigate to the last post in a topic after they are done reading it. This is not ideal for documentation type categories such as documentation and so on where you often want to re-read the OP a few times. This is a per category setting, to enable this special behavior tick Navigate to first post after topics are read in category settings on th…

Per category setting, detached from wiki.