Only been around for 4 years.. Here's my thoughts:

What value propositions truly define Hive?

I think it's very fascinating that there is a social media that has a cryptocurrency and a stablecoin mechanism incorporated within it. I always think people will one day realise how amazing this set up is, to be able to earn rewards from writing posts and even reward others from reading and commenting.

What deserves to be highlighted on the landing page?

Hmm not so sure about that.. Maybe the awesome communities that we have, from gaming to food to travel to even pages that allow you to reflect about life or rant about work! There's something for everyone to engage!

What genuinely sets Hive apart from other cryptocurrency and blockchain projects?

Definitely the people. While some people have left in recent periods, I think from a "glass half full" perspective, there are still people around who are posting, who are commenting, who are building, and some of them have even taken the opportunity to buy and power up more Hive.