When the tree of a thread gets large, navigation to the next message in the tree view might become quite cumbersome.

Have a look at this thread on the ICE-Treff forum as an example.

To navigate to the replies to a message, one has to scroll up and down to find the appropriate branch of the tree, which then moves the message just read out of sight.

It would be helpful, if MLF could provide direkt links to the direct neighbor nodes in the tree, both the one upward as all the nodes downward, i.e. the replies.