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.