Re: Preserving "no processing" tags in a page?
Content is parsed like wiki page" (which WYSIWYG editing claims to require why?! but appears to work fine without)and replaced it with "Content is partially wiki parsed" which is needed for plugins to work. Strangely, the latter appears to be "Neglected... can have unpredictable results and may be removed in future versions."
For future reference to anybody who might find it helpful, what I wound up having to do was edit /var/www/html/lib/parser/parserlib.php and comment out all the transformations of wiki text. I also had to disable "