The tutorial gives this example:
<leader>c$ |NERDComEOLComment|
Comments the current line from the cursor to the end of line.
But pressing \c$ or ,c$ in vim copies the current line and switched to insert mode.
I've installed the plugin via pathogen and :help nerdcommenter does work, but there's no mention of nerdcommenter in the output of :scripts, don't know if that means the plugin hasn't been successfully installed.
This looks fine. Here are some troubleshooting tips:
:scriptnamesoutput for.../plugin/NERD_commenter.vim; it needs to be there.:echo loaded_nerd_comments:echo g:NERDCreateDefaultMappings:nmap <Leader>c:nmap <Leader>x :echomsg "Works"<CR>and press\x.:set paste. Undo with:set nopaste.