1) The new layout is very white. It is very hard to see the separation between different posts.
2) The new layout doesn't color-code code blocks anymore.
3) The link "Tips for Posting Messages" do show code as color-coded. It also fails to make use of for the example code that is then shown formatted - so the input data doesn't have indented text, but after add of the "pre" tags, indents magically appears.
4) Why does every new post ask for the users name? To make sure that even more people will make lots of posts using faked names - sometimes even switching between two names and one-man Q/A sessions.
5) This forum really do need real, registered, accounts. Where the posters name gets permanently locked, making sure that however many aliases someone creates they are still unable to impersonate someone else. The ability to impersonate or use whatever random aliases is creating lots of extra rude posts.
Maybe it is my computer or Firefox but I noticed that the on my wide screen the grey area left and right of the forum content flickers with every mouse scroll, very annoying. When I zoom in I see a grid of very fine 45° lines being updated on every scroll. When I zoom out until the text becomes uncomfortable to read the effect disappears, so this could be some kind of aliasing with screen resolution. Please don't give me a headache and make this a uniform gray.
The grey on the sides isn't pure grey but 50% white and 50% darker grey pixels.
If the web browser scrolls an odd number of pixels, then the grey and the white pixels will switch place. And that is visible as flicker.