Well, I followed your instructions.
The front page of the blog now shows huge lettering.
The "write" admin page had the following list at the top
Checking cap edit_posts
Checking cap edit_users
Checking cap edit_users
Checking cap edit_posts
Checking cap edit_pages
Checking cap manage_links
Checking cap edit_posts
Checking cap edit_posts
Checking cap edit_pages
Checking cap manage_links
Checking cap manage_categories
Checking cap manage_categories
Checking cap upload_files
Checking cap import
Checking cap import
Checking cap edit_users
Checking cap read
Checking cap manage_options
Checking cap manage_options
Checking cap manage_options
Checking cap manage_options
Checking cap manage_options
Checking cap manage_options
Checking cap manage_options
Checking cap switch_themes
Checking cap switch_themes
Checking cap level_10
Checking cap level_10
Checking cap level_10
Checking cap level_10
Checking cap level_10
Checking cap level_10
Checking cap manage_options
Checking cap level_0
Checking cap moderate_comments
Checking cap manage_options
Checking cap level_10
Checking cap publish_posts
Checking cap level_10
Checking cap level_7
Checking cap level_7
Checking cap level_7
Checking cap level_7
Checking cap edit_themes
Checking cap edit_themes
Checking cap switch_themes
Checking cap level_10
Checking cap manage_options
Checking cap activate_plugins
Checking cap read
Checking cap edit_posts'
And this is just after I uncommented line #269
after I ucommented out line #384:
Checking cap edit_posts
Checking cap edit_posts
Checking cap edit_users
Checking cap edit_users
Checking cap edit_posts
Checking cap edit_pages
Checking cap manage_links
Checking cap edit_posts
Checking cap edit_posts
Checking cap edit_pages
Checking cap manage_links
Checking cap manage_categories
Checking cap manage_categories
Checking cap upload_files
Checking cap import
Checking cap import
Checking cap edit_users
Checking cap read
Checking cap manage_options
Checking cap manage_options
Checking cap manage_options
Checking cap manage_options
Checking cap manage_options
Checking cap manage_options
Checking cap manage_options
Checking cap switch_themes
Checking cap switch_themes
Checking cap level_10
Checking cap level_10
Checking cap level_10
Checking cap level_10
Checking cap level_10
Checking cap level_10
Checking cap manage_options
Checking cap level_0
Checking cap moderate_comments
Checking cap manage_options
Checking cap level_10
Checking cap publish_posts
Checking cap level_10
Checking cap manage_options
Checking cap edit_themes
Checking cap edit_themes
Checking cap switch_themes
Checking cap level_10
Checking cap manage_options
Checking cap activate_plugins
Checking cap read
Checking cap edit_posts'
I noticed that the "publish" button appeared, but when I tried to actually publish a Page, I got a "cannot modify header" error on the admin page, and no page appeared.
I went back to the original file afterwards.