I think you're wrong on a number of things, I'll try to recap a few thoughts of me and let's see If we can learn everyone from the discussion:

Think about 10$ hive for 2 months, how much this would print.
And a year later again 1$ or less?

The problem with HBD in 2018 (well, SBD), wasn't the rapid increase in STEEM's value, the REAL problem was it wasn't expected to see SBD trading at 3-7$ for an extended time period (since the chain didn't have a mechanism to peg the coin on the upside). Today mechanisms on-chain control this.

1. The ability to burn HIVE and print HBD.
2. Mechanisms like the hbd.stabilizer proposal, which acts as a 'primitive market maker' as I like to call it.

This effect gets amplified if projects/dapps use HBD. P.e. Ragnarok, from Dan, or HE pools, since all of them virtually 'lock' HBD out of circulation.

The problem with HBD is, it is a solid stablecoin. It's not backed by a promise, it's backed by hive.

Wrong. It's exactly as you're saying. Hive itself is 'the promise'. We could all agree to stop calling HBD 'hbd' and call them 'redeemable vouchers for 1$ worth of HIVE'. Think about the VOUCHERS of the Chaos Legion, if that helps.

the interest is given without adding value in exchange.

Also wrong, HBD in savings equal to HIVE out of circulation. Isn't that value?

12% for liquidity provider hive/HBD would be a good thing.

It could be very interesting, but IMHO the risks outweigh the pros for something that 'we already have built'. I would keep these things in L2, which is exactly what Hive Engine is providing.

Luna did the same with a Luna backed stable coin. I would prefer to watch first what happens there ( after a market crash) before we start crazy things here.

It's not enough validation of our idea seeing Luna ranked at #9 with an x57 more market share Vs HIVE?

Terra USD ($UST) has a 9B valuation, HBD mere 24 milion (or x375 less)

We need to print HBD... and the only way is to incentivize people to do so. Like, LOTS of HBD.

More APR on HBD savings => More HBD => Closer peg => More reliable stablecoin (because closer peg) => more market participants => More demand for HBD => Increase of marketcap of HIVE

The barrier for this is the 10% debt limit, increasing it to 30% is a 'good enough' intermediate scenario where we can keep expanding the supply of HBD (and hence HIVE) without compromising on a hyperinflationary black hole.

We could airdrop over 12 months HBD to hivepower stakeholder. So the total amount increase. Because the % would depend on Hive power, everyone should have after the airdrop the same % in total.

We already have this in place, it's called ''posting and curation rewards'', I believe we don't need to overthink excessively things there, but neither to try to introduce innecessary mechanics in place; p.e. 'HBD airdrop to hivepower holders'.

...

Don't you agree? Or I'm missing something.