i think xf should have a feature of infinite/endless scrolling.
(which can be enabled/disabled if the forum owner wants.)
this is an advantage both mobiles and desktop users.
much user friendly.
good example is this website
that site has endless scrolling BUT TAKE NOTE of the url, as you scroll down
the url also changes to 2...3...4.. and so on...
that can also be implemented on xf with page numbers
What do you think??