I intend to use my own personal blog to draft some ideas that I would later use as a foundation for my more elaborate papers to be submitted for publication. Am I in danger of self-plagiarism here? On the one hand, it seems that a paper should cite the blog entry it expounds on. On the other hand, citing a personal blog might come off as informal and less serious, especially if the paper essentially duplicates the main results or arguments. Moreover, it makes it more difficult to anonymize one's work for blind review since a single blog post citation stands out.
How should I proceed? Is it a bad idea altogether to have a personal blog as a sketchpad of your yet-unpublished research?