Burn to promote already up and running on @steempeak. Steemit is the sluggish one on implementing it like Steempeak do (Steemit has the burn promote tab that no one reads now). Maybe @quochuy can help to upgrade the condenser for it?
There is another STEEM sink already planned on SMT whitepaper, it's called the automated market maker (permanent reserve). Too bad it doesn't make it to SMT v1.
For instant power down with fee I just want it to be optional because I sure as hell want to opt out from it (or not opt in depending on the default)
And steempeak is more than happy to work together with steemit and others to make that burn to promote in a way sync up or be sort of decentralized info.
And yes if @quochuy is interested they have said they may consider a really well done Pull request.
This is great news, thanks Jarvie!
I feel like our burn system that gives the interface the option to have their own ui placement system and fee is the best decentralized option. We would be happy to add other interfaces to the action and send the fee along for placements on their system. Wallet transactions seem to work fine
We would love to have 3Speak be apart of this. If @quochuy wanted to create the Pull request for Steemit I would be happy to fund the cost.
Our burn promote page presently looks like this... I think we're more than happy to add 2 more entries for people to add promotion for 3Speak and Steemit.

You'd get a wallet payment that is proportional to how much they burned and will know how much they burned.
Then it's up to 3Speak and Steemit to determine how those are placed in feeds.
For example SteemPeak.com places them only inside of TOPIC based feeds. Not your follow feed or blog feeds or anything like that just topics and "all topics feed" (which some call trending)
Then we make a decision of how often they're placed.
And we let them choose the topic feeds they go into or if they want a general promotion which means it goes to all topic feeds but is more expensive.
It's a pretty flexible system. We'd love company on this endeavor. We've already had hundreds of promoted posts.
Happy to start a group conversation with you and @quochuy... even if you guys just want to do the Pull Request for the presentation of the promoted posts and just piggy back off our interface for making the burns/payments for now that would help save a lot of time and test it out.
Then maybe @aggroed and his team will also join in for nitrous interfaces.