I am not sure if this is a Dolphin bug or a bug related to the text editor.
Word processing is a funny game I think. I've always thought that editors used to create blogs should be a little more like a word processor and less like a chatbox. I am always a little disappointed by the lack of these features in most editors found online. A little more attention to the idea of WYSIWYG would make publishing anything a much easier task.
I created a test blog and ran across an issue where what you see is not what you get.
The editor adds a blank line between paragraph tags (</p> here<p>) that does not result in a blank line in the published blog.
I tested it against Firefox and IE7 and 8, same result....