Any online course creator here? Need your input to add more features.

I finished the tanya.digital MVP yesterday. It's a Q&A social media like askfm/curiouscat, but targeted towards the more professional users who regularly receive questions from their followers. One of my target users are online course creators. I plan to build some features that will help them connect/engage more with their students and build a long-term relationship. My questions for the course creators are: How do you like the current support system (between you and your students) provided by big online courses websites like udemy/lynda/coursera? Are most of your students connected with you outside of the system?