Hiding the watchlist when you have nothing watched could reduce clutter for new users. Done right, the appearance of the link when you watch your first thing will help you understand the point of the watchlist.
There is no way to add something to your watchlist *from* your watchlist, so there's no point in going to an empty one.
When you click the star, having the watchlist appear with JS would tie the star to the watchlist nicely.
However, this idea should be discussed with the community, since the personal tools are very visible.
Trello card: RdndhuI9
- column: Bucket o' Mess
- labels: UI & UX Design (purple)