Can you send me a link or something about the @proofofbrainio 10% beneficiary lock-in? From reading your post this specific point is the one that I would like to see more about before trying to outline such system in my head.
As for smart contracts, I will note that there is not built in smart contract support in Hive itself yet, which is why most people do go the route of second layer tokens and use services such as hive-engine.
From my current knowledge, (the @proofofbrainio lock-in above you discussed would change this) beneficiaries are selected and not really locked in except for when posting to certain communities/through separate channels. However, you can always just add an additional beneficiary. From this, at the very least, you could have a system of "refer and support" where you hook them up with knowledge and guidance (and even delegated Hive Power as needed) and in return ask/require them to add you as a beneficiary. Then on the back-end you could just keep the (automatic) tally of anyone who's not following the guidelines and essentially cut them off. I know this becomes more of a trust-then-validate system but in my opinion would be more simple initially.
Future implementations could be a website/application which houses pretty much everything - like LeoFinance but with a goal of on-boarding, referral, growth, etc. And in that system you could easily lock-in a percentage beneficiary for all interactions within it.
-Ace
He had it locked in for a while. I think there was some backlash and it was removed. I know onealfa had made a post about not upvoting people with that beneficiary attached... couple months ago.
Okay I see, from looking into it from my perspective I'm not sure if his "locked in" delegation requirement would have affected all posts or just the ones posted within his own site/network/communities.
I believe it was only the ones who used the proofofbrain front end. As I remember it, it was 10% if using the front end and a 20% reduction of the tag was used but not posted via the front end.