Sure, if you do not try, you won't know...

And yes, you are right, the reasoning is the other way around, getting popular accounts to follow you. At first I thought that there could be a risk that Steem would become a legend level controlled popularity game. But it does not have to be build around a few accounts with a high UA defining what will become a standard for what is okay, considered good or even quality content.

But also accounts that are into absurdism, as an absurd example, could still get a high UA. Having lots of followers, that each have lots of followers, having each lots of... And so on and so forth.

There is one thing that I do my best to wrap my head around. In the formula you presented, there was no SP considered at first. The value for any account its UA is in effect an accumulation of all following accounts their UA, that depends on their UA, which is an accumulation of their followers UA etcetera. Do you consider it to be a needed part, using it in combination with SP?

Legend levels will then be redefined with a UA value (also taken into account the SP they vested) and Newbie levels will have the lowest UA value possible. Trying to get as many high UA level accounts to follow them. There is the economic encentive. Higher UA, means higher possible payouts, getting even more followers and so on.

This could act like a bubble up - sink down filter mechanism I guess, so no economic incentive to SPAM, or do the famous "Good post" kind of replies. Or the "Follow me and Upvote me now!" pressure replies. Or the link spam replies. As there is a low chance that will be rewarded with a follow of accounts who really put an effort to post and reply. To build a high UA containing (sub)network, a different behaviour pattern would be needed.

With a higher UA of influence as a kind of reward for posting using that appreciated behaviour pattern. What I do wonder is how this could work out for system critical posting accounts for instance. Would freedom of expression still be able to live at the Steem blockchain? Or could it be that it got silenced through this mechanism? Or that could build its own sub-network too, also with a high UA status.

That would make also sense in combination with SMTs. Like an Art sub-network, with their own SMT called Rembrandt would want the artistic contributors to get a part of the RMB reward pool. Not those abusing the art hashtag. But they'd have a low UA anyway, so at the most the'd get a small fraction of the rewards and a lot of unfollows.

Just me thinking out loud again...