When not logged in uploads page currently displays error message: "You must be logged in to see your uploads." Watchlist page says, "You must be logged in to watch pages."
This is confusing to a new user. I suggest we change the copy to quickly explain what these pages are and sound more inviting.
Something like -
uploads: "Log in to donate images and media to Wikipedia. Your images help educate people around the world"
watchlist: "Log in to save pages to your Watchlist - a way to keep track of changes."
Welcome suggestions for the new copy!