Yes, discussing the matter seriously, the concern is that there is a real problem with social isolation with the younger generations, and an increase in the prevalence of mental health issues. It's projected mental health will become the leading health problem ahead of chronic cardiovascular health issues in the western world.
To quote the World Health Organisation "Mental health conditions are increasing worldwide. Mainly because of demographic changes, there has been a 13% rise in mental health conditions and substance use disorders in the last decade (to 2017). Mental health conditions now cause 1 in 5 years lived with disability. Around 20% of the world’s children and adolescents have a mental health condition, with suicide the second leading cause of death among 15-29-year-olds. Approximately one in five people in post-conflict settings have a mental health condition."
Engaging with nature and people is important for people's mental health. Forums, despite their failings, are online global communities where people can share thoughts, ideas and interests. The right ones also provide good mental stimulation and opportunities for learning. It's kind of curious that many more older people are using the technology to interact, rather than younger people. I have no idea what the turnover rate is at CR, the thing is that many people just read forums but don't join. For forums to survive, in my mind, they need to be welcoming to beginners, and supportive of them, sharing knowledge and experience, being real community.