I have known people who were going through divorces, abusive relationships and major life issues, all while their social media feeds were showing how great everything is going.
The only 'REAL" people I met online were either focused niche/small subreddits or gaming communities. As you build trust you learn more and more about their real life, good and bad. Growing up I met a girl who was going through chemo treatment and could not leave her home due to all the severe side effects. This was in one of the gaming communities. I really enjoyed her company and it really opened my eyes. Internet was/is an amazing place, I was able to really connect with someone who normally would not open up to strangers. In the end, I didn't really know her IRL, maybe that is why she was able to open up and be direct about sharing her thoughts about suffering, life and death. I have not been able to connect with anyone like this IRL, is it me that doesn't seem trustworthy or approachable?