Syntax highlighting is not relevant for all preformatted text

The new syntax highlighting is nice, but it seems to trigger on all

 tags, which is not the correct behavior in some of the posts I've seen. Maybe it could be togglable, or even togglable per-feed. 

 Here's an example where it's particularly off (the poem uses pre tags to preserve some very specific spacing, which got lost anyway for some reason): 


 Original post: [](