I've been doing this for some time now and it indeed makes editing text in vim easy. Just `dd` and `p`. And as the article mentions, diffing is much cleaner.

There's a caveat however, if you comment a line (to keep the thought, but see how it would work without) some Markdown parsers will interpret it as an empty line, and thus create a new paragraph. It then becomes necessary to remove one of the semantic newlines, which looks rather messy.