We require the `Flow` extension in order to have discussions rendered nicely.
Topic on Extension talk:MOOC
Yes Extension:Flow was already suggested to use by @Jens Ohlig (WMDE), @Jens Ohlig when we discussed the old MOOC extension a year ago in berlin.
flow discussions are not able to be transcluded yet. this needs to be fixed and I have entered this as a bug in phabricator.