For real world dating, being able to do something (eg. having a meal) can make the environment less awkward. The downside of VR is that you can't share a meal together in person, but maybe there is a feature where you can integrate different activities together, such as the concert or gaming features of VibeHUB.
For the teaching feature, it will be important that there is an open system where ideas can't be easily censored (whether by deleting or by downvote bots). The actions from twitter, youtube, google search, reddit are examples where free-thinking people have been put-off by the companies' thought-police actions.
I'm sure they are thinkin all of this problem for the platform, they are working hard to make this possible, and looking for all the troubles that may arise is their job, and if that is not enough, a beta release would be good to polish more the service, then when living, it will be still in development, to make the platform better, so don't worry about that stuff, they will work it out in the end .