This was the only forum that I frequent that had all the discussion in one thread, which I thought was very strange! I got used to it, but I'm definitely glad to see the back of it!
The forum that I use the most (LinusTechTips) I feel has the best layout, with everything segmented all on one page, plus a dark mode! I get that we can change the colour scheme, but a toggle between a dark mode and a light mode would be handy for when I'm on at 3am like I usually am!
I'm also really liking the notifications on the desktop, handy to see when you've been quoted and not realised.