Nice one, @whatsup! That's a thought-provoking topic. I can only say that my behavior is exactly like yours: I spend much time talking about Steem, but not on Steem.

According to @penguinpablo the level of engagement has been pretty stagnant, being the average around 2.5 comments per post for over half a year now. If you think about our level of interaction on Discord that's basically nothing.

I think there's three things that have an influence on it:

1. The very simple and basic UI of steemit.com (still mosted used app on the chain) doesn't encourage you to interact. There are no gimmicks, features, fun tools.
2. On Twitter an discord you can combine public and private chatting, using chatrooms for topics that concern the wide public, but being able to switch over to private mode if you want to reach out to somone directly.
3. Interaction on Steem is limited by Resource Credits which means that the large majority of users simply can't post the hell out of the channel (as they can and do in the Steem Chat on discord for instance :-)).

These are just three that have driven people away from the blockchain. It's a shame!

IMO only by fixing point no. 1 you'd be able to change things. It's as you've said very often in our conversations:

Incentivize the action you wanna see.

Damn, this has become a super long comment. Sorry, haha! As I said: thought-provoking topic!! :-D

Loved & resteemed.

Have a good one @whatsup :-)