If you talk about the workaround to get pasting to work in the box:
You click rate this game.
You click inside the box with right button and select Inspect from the context menu.
There should be several sub-windows. One should show the current css styles.
The sub-window with the styles has several sections, one is called Event Listeners.
Select Event Listeners and scroll down to "paste" and trash the event. There literally is a trash can icon on Chrome.
Now, pasting works in the box.
This was description for Chrome, but should look similar in the other browsers. (The optional text will not be overwritten by the pasting event. But it will dissappear by a keyboard event, as soon as you type)