The code (preformatted text) window shows content in a very large font and remains narrow, even when you increase the width of the browser window. This makes reading posted code/logs very cumbersome. I quit several support threads because reading log or config output is such a chore.
Here is an example from a support thread
As a workaround, people could use blockquote, because that break lines, but then you have no syntax highlighting and it is unintuitive.