Author here: Agreed on it being better to do advanced stuff in other apps. I found it interesting that the original Markdown launch posts basically say that. Te

Author here: Agreed on it being better to do advanced stuff in other apps. I found it interesting that the original Markdown launch posts basically say that. Textile was trying to cover the vast majority of HTML; Gruber with Markdown basically said that this is to simplify writing for the web, and if you need HTML, you can just include HTML inline for extra stuff beyond the writing basics.