I think you use that "social" term too widely.

support forum is “social media”, even wikis are “social media”,

Completely disagree. I don't see any social component here. Of course you can say that any resource where one user can leave a message readable by another user is a social media, but... what's the point? I can write a message on the brick wall and it would be readable by others :)

you certainly have a high opinion of your own activities, eh?

Yes, writing here is almost a complete waste of time. "Almost" because I have one rational reason to continue to do it: I try to improve my English. As soon as Lemmy will stop helping me with that, I will move my attention to something more interesting than arguing with strangers about unimportant things :)