Why does my score always have an asterisk?
You must have chosen the so-called "hard mode" where you retain the green letters for each guess. You can uncheck it by clicking the cogwheel in the upper right corner.
Why would that be harder?Doesn't everybody always use the green letters again in the next guess?
Not always. Especially on the second guess, when you may want to cover more letters. Obviously, there are lots of different strategies. For example:Wordle 591 3/6🟩🟩⬜⬜⬜CRANE⬜🟨⬜⬜🟩TOILS🟩🟩🟩🟩🟩CROSS