Human prejudice towards tweets with lots of likes and comments, and similarly for stacker posts with lots of comments. that's why people pay for engagement, to get more engagement.

If I was to advertise a brand on Twitter, before using Twitter's own boost, I would pay some sats on sats4likes to get likes on the tweets of the new brand account, then pay more sats to get proper comments on microlancer, AND THEN use Twitter's boost so that people seeing the 'sponsored post' will see lots of comments and are more likely to click and open to read, which is the objective in any ad.