[panick21_]

I mean, an impression counts views normally right? It would seem strange that so few people saw the tweet.

Its also the case that he usually gets quite a few retweets and often lots of responses as well. So the number just seem low to me.

[z3c0]

I missed this prior to now, but (in my experience with web analytics - I'm not a Twitter dev) impressions are typically when it appears in a users view. A "scroll past" is usually enough, because advertisers just want to know that it made it in front of somebody. Their marketers will handle "grabbing your attention." However, whether it ever makes it to a users view to begin with is determined by "The Algorithm", which would be seeded by a users past interactions. Ignore Musk tweets enough, and presumably, they'll stop showing up by default.