You're just linking to an average drip machine, which obviously doesn't have these problems, but it doesn't help the stackoverflow user who had the original que

You're just linking to an average drip machine, which obviously doesn't have these problems, but it doesn't help the stackoverflow user who had the original question. The machines he was asking about have a separate container that stores beans that are automatically ground. These are fully automatic machines where you push a button and coffee comes out, no interaction is needed by the user, and yet the user will sometimes "think" action is required and will mistakenly fill the bean storage with water. Your "commercial" drip machine is probably only a few hundred dollars at most, but the fully automatic machines are in the thousands of dollars, so repair is pretty expensive.