The first edition of this question: https://stackoverflow.com/q/15692844/11683
Seems like the question text is all prettified despite it's not formatted as all code.
Does not happen in the preview.
This is what I see:
I'm not immediately sure what causes things to break (something to do with the manual
<pre> blocks*), but you should turn off Compatibility Mode and things should be fine:
I've also edited the post to use Markdown code blocks, which seems to resolve the issue even in Compatibility Mode.
*They had unbalanced
<code> tags inside and outside their
<pre> tags, which throws IE 8 off. I'm on an iPad right now so I can't easily account for the difference in rendered versus preview, but its likely similar to the case on Blockquotes in a list break blockquotes after the list (which also involved unbalanced tags, but at the fault of the Markdown parser instead of the user)