vim-markdown This plug-in will automatically set foldmethod=expr for files with filetype being mkd, which will use rake new_post The generated markdown file has the side effect of folding somewhere, expanding and syntax highlighting:

How to eliminate it once and for all without changing foldmethod? Thanks!

Updated: I expected that there would be no good solution, but I found a new plug-in vim-octopress that can replace vim-markdown. Not only does it not have the side effects of the former, but it also supports rakeCommand built-in. There is no need to dwell on this issue any longer.