Mggo doesn't really have a good reputation among translators/groups, because from what happened in the past mggo doesn't really have any respect for translators (they got their work stolen and uploaded here without their consent even when it was private which got them in trouble, some had their credits delated, most tried to contact the admins but never got any answer...)
The reason they want us to use "that" other webstite, which shall not be named here for some reasons, is because it is friendly to translator, they can talk to admins anytime, create groups, decide what is uploaded and when and delete things too, their project can't be snipped and no one can upload over them and so on...
I love mggo, especially how easy to use it is and how active the comment sections are but it's obvious the admins don't give a damn about anything other than money (whether it's authors, editors, official companies, illegal translators, groups or even us users)

Just curious, what are the reasons a translating group would want us to go on their webwite instead of here?