Another key factor for this, especially for content creators and content consumers is Engagement and interaction at post level... and let's face it, the comment engagement in your average Hive post is not ideal.
Not ideal? That is a mild statement. Many people do not have (or rarely have) any real human comments under most of their posts. Most of the Hive blockchain users are focusing on their own posts, but they do not care about other people's posts. The selfishness and the greed of the people are ruining the platform. An interaction challenge will probably not change this. If the interaction is a "challenge" on a social network, then that is not really a social network, but probably a lost cause. But we will see. As you said:
The point of this Challenge is to increase Hive content interaction and change the mindset of long term users, to experiment if we as a community can shift to having content consumption as good as content creation.
This is my honest opinion.
That's fine and I agree to a certain degree. We are in a relatively new experiment, where social media rewards users no matter their influence, but what they bring to the table. We'll see if it works.
Your statement is true for the whole world, not just a specific community or blockchain, and it's not going to change by a challenge, but still it could be one step forward.
Honestly, I don't like this challenge, because it focuses on bringing new users to the blockchain, not encouraging current hive users to interact more with each other.