Another annoyance with TOC is that it scrolls its content to the top with any change of a hierarchy / headers. Imagine you want to edit few points at the end of your document:
- Open a file long enough so the TOC is scrollable.
- Have the TOC floating (may not matter)
- Click on a header at the bottom of TOC
- Change it
- Wooooosh… TOC is refreshed and showing the 1st node, while you are at the bottom of the document editing the last header.