You could use real vim in there with ghosttext, but it's not a native integration, you'd have a separate editor window
Another upside is (if your editor is properly setup to not lose data) that a page crash will never lose your precious long carefully crafted comment since it will persist in the editor
Another upside is (if your editor is properly setup to not lose data) that a page crash will never lose your precious long carefully crafted comment since it will persist in the editor