Please add an option for faculty to require a reliable source for questions and replies

We are in an age in which the need for conversations to reflect science and evidence cannot be overstated. This is particularly true of topics in the social sciences, where people often tend to rely on gut instincts or anecdotal evidence. I always required my students to have their posts informed by research evidence and a reliable source, even if they want to expand from that to an opinion. I have to have my assistance hand score all posts because Packback has not way to handle this in the grading rubric. I would love to have this option added to the platform and I think there are good pedagogical reasons to have this option so conversations remain high level and evidence based even without professors closely monitoring the conversations.