I go on FB daily but don't post things and rarely "like" anything. Just more so for browsing. I have an Instagram account but rarely ever go on it. Same with Twitter. I use Reddit mainly for when I'm trying to look some stuff up and it leads to a Reddit link. I sometimes use Discord when I'm playing certain games and interacting with other players.
I voted youtube since you added that. But my extent of being "active" on youtube is just watching random shit every day (who doesnt do that). I rarely post vids myself, and any subscribers I do have are all foreign and mostly due to 1 My Summer Car vid I posted up 6 years ago