Hi
Firstly, I think xenForo is amazing. It is what ipb3 / vb4 should be
A little suggestion. The top page button is really useful; when your down a page and want to access the features (IE inbox) at the top its only one button away. The problem is, you have to be at the bottom of the page to access this button.
One solution I have seen is an ajax top page button, that magically appears when you have scrolled down x amount down a page.
An example of this:
http://www.skinbox.net/browse/live-demo/skin/115
Scroll down the page a bit, and you'll see an arrow button bottom right.
This is not the most major suggestion, nor is crutial, but makes life easier for readers when they are "done" with a topic
Many thanks
addaco