Clicking "watch"/"unwatch" shouldn't take you to a different page; it should
just stick a message at the top of the page indicating that a change has been made.

Similarly, logging in from a page should automatically redirect you back to the
page you were on; rather than making you follow a link. Perhaps
auto-redirecting you after a second, while showing you the "you're logged in"
page in case auto-redirs don't work on your browser.

Version: unspecified
Severity: enhancement