I'm in my mid 40s huge geek, programmer, gamer...I never had a huge calling to join those platforms. I was always a more forum type. Admittedly I checked out the sites from links of Reddit and such, but never had an urge to join them for anything, probably due wanting to read more conversational type input from others. Maybe I missed out but seems like being an old foggie sort of won out in the end with what I'm reading these days.
I'm sure there was decent conversations on some of the platforms as well, so not saying they were always bad just wasn't something that I had an urge to put time into, mostly so I could game more heh.