However I wondered if this would have any impact on (1) SEO or (2) useability.
I am presuming that it could even be good for SEO, or maybe the appropriate pagination we have on xenforo makes the amount of content on page 1 irrelevant.
Re: useabilty there would be more scrolling but nobody has objected. (Perhaps partly as I have a Back to Top link which avoids a lot of scrolling)
Any thoughts gratefully received?