I've now removed the avatars in very narrow post listings to make more room for thread titles.
Seems as a good move; the widths are much better now on mobile.
On my wishlist is- page navigation also at the top (first, prev, 1,2,3,..., next, last) - forum navigation also at the bottom (index, learn, general, announce, etc.)
That would avoid a lot of annoying scrolling when used with an account in a browser.