But that's the same for everyone. But may be an accessibility if you can do it through mouse but not keyboard. Based on the second sentence it's a P1 item. In the absence of notification, serious accessibility problems. People think that their history mechanism is broken.
People often work around by shutting down the browser window.
If pseudo-elements supported. There are a lot of superfluous links on pages, notably portal pages. I think it's a P2. I think P1, but can live with P2. I think developers might not add features because of this.