I would amend dysfunctional to any-functional. Like a really good friendship can do lasting damage to one's ability to level up in life. Plus we are looking at upsides too, like pro-whatever-function for dial-a-learning-experience granularity.

Lots of weird but true facts leading into the ahem, streams of consciousness. It goes really deep and winds around for very good reason. Inventing words you and I can share here is brainutationally expensive, concision with existing words often requires mutual expertise, so path-forging with general wording is made rough and ready; get a heavy machete.