We're not supposed to read every all your comments all the time (with over 10.000 sentences, that would be impossible - not only are we volunteers, but we need to be working on the course and we can't be lurking around the comments waiting for complaints to arrive, that would be massively unproductive). That's why we ask everyone who was suggestions to use the "Report a Problem" feature to let us know what things we can improve.
Good luck with your studies ;)
That's ok - we can understand the frustration: believe me, we're also very sorry we can't be everywhere all the time. Thank you for your words - most other people who sound so angry wouldn't bother replying and would remain stuck in their ways. It's good to know we're learning from each other and reaching a form of mutual understanding.
Continuação de bons estudos :)