for someone that's learning this is really confusing
I totally get it and I think the same. I only tried to help as best as I could. If there is something wrong with the way I handled this discussion than just let me know I can change my behaviour, but that's all, I don't have any special powers here.
Can't Codeacademy make the SCT (submission correctness test) invisible to the user?
Of course, they can make that. Gosh, even I would be able to make that (if I could change the SCT). The problem is that codecademy just doesn't care.
Problems related to the visible output of the SCT were reported many years ago and they are still here. Now, codecademy staff argues that these courses are old and that is why they don't want to fix them in any way. The truth is that they never cared about the quality of content. The number of users is still raising so I bet that they will never change their approach to education.
And now you should take a moment and decide if the codecademy is the right place for you. Is codecademy a good learning resource? Nope. But you can gather points!
If you think seriously about programming - find a good book about the specific language / topic you are interested in (you can ask any experienced programmer to help you with picking a book or the topic) and leave this place behind you.