Not always, imo. Sometimes posting a note or comment is just a means of gathering information. It's that simple. I've observed many Nostr users who display this kind of behavior; and they're usually accounts with a relatively smaller follower count. The people who come here for the social aspect seem less active since I showed up nearly three months ago (yes, only three months). I think it's obvious that many are growing way too bored too quickly and are realizing that they don't need social media as much as they originally believed. That's a win, imo. Many are rediscovering the value of face-to-face interaction. Also, I've seen plenty of people say that nostr has no algorithm, yet, they fail to realize that they've all played a hand in making the "nostr algo." Nostr algo = block and ridicule anyone who notices and publicly calls out imperfections within both Bitcoin and the nostr protocol clients... and then whine about it.
The topic of a person's reasoning behind their social media usage is evidently far more nuanced than I had originally believed. So my opinion may seem somewhat erroneous, but my personal belief is that nostr isn't a "good social media" (as I don't believe there is a truly good one) it's just the least worst. What Nostr DOES have the potential to be is the next INTERNET. That NEEDS to be the focus.