This plugin is not playing nicely with other plugins like:
http://erik.range-it.de/wordpress/plugins/syntaxhighlighter/
This is because this other plugin is disabling the wptexturize filter and is expecting it to stay disabled. But fauxml is re-enabling it.
Because of that, the double quotes in the code I try to show in my posts are not the straight characters I expect, but those anoying "smart quotes".
I tried to modify SyntaxHighlighter to use fauxml, but it didn't help. Wptexturizer was still in the way.
I think fauxml shall not pass string which are passed through filters. It should be the plugin's choice to do it or not itself.