Hey, thanks for your question. A couple of points -
1) You don't need to make an account & download an extension for Smort
2) Ads don't show up in Smort
3) You can actually edit the article content in Smort using Markdown. Please see https://www.smort.io/demo-walkthrough for all that is possible
4) You can customize your font size, style and theme with Smort