Also in regards to the clickbait title you’re 100% right. Like all social media SteemIt has a clickbait problem. I’m not sure how to solve it though.
Clickbait cannot be resolved easily, I think. Take a look at YouTube. We all know YouTube is now owned by Google, and we also know Google is a tech god. But still we always see around rampant clickbait titles and clickbait thumbnails on YouTube.
If Zuck isn’t buying out Reddit, Twitter, etc. Steem isn’t even on his radar
These platforms are not even a direct competitors to Facebook, so I see don't these as directly threatening Facebook's dominance.
Steem on the other hand is a different monster. It is a blockchain and any social media sites can be cloned and build upon it. In a way, Steem is an indirect threat to Facebook for sure. If you take a look at the number of engagement on the trending posts on Steemit such as this, it should give you an idea on how powerful the platform is and how viral it can be.