You will lose the opportunity to learn how to use SmartCAT, working in a collaborative, supportive and risk-free environment.
You will not have the benefit of other language experts (all native speakers are experts) to help you, if you get stuck.
You will miss out on some of the training and certification programs that SmartCAT are offering to provide us with.
SmartCAT are hoping you will remain with us, until you are ready to become a professional translator. That is why they are making this new environment available, so we can all practice and become competent at using their platform.
Ultimately, we hope those of you who aspire to become professional language translators will stay around for a while and enjoy the camaraderie you felt on Duolingo, before you are ready to take flight and leave this parliament of owls.