The two way conversion is incredibly powerful at allowing for the peg to be maintained (much more powerful than a liquidity pool).
If that's so, why does the HBDStabilizer require $2.4M a month from the DHF and another $10k+ per day from the comments.
How much does the 2-way conversion cost (create in inflation)?
The funds from the stabilizer flow back to the DHF. And the DHF profits from it. The stabilizer acts as a mini-profit center for the DHF. This has been explained many times in posts in the past. You constantly repeat the same questions without bothering to discuss the answers you're given.
This has also been discussed in depth in other posts, but it's a mildly complicated equation with no guaranteed direction (inflationary or deflationary), because it can depend a lot on whether Hive goes up or down in price (there's also a 5% burn factor on Hive->HBD conversions). But so far it has made Hive net deflationary (because Hive price has tended to go up and because of the burn factor).
@dalz just recently wrote an detailed and informative post on this very subject. I feel like you should take a little more time to read what others have written: https://hive.blog/hive-167922/@dalz/hive-ends-2021-deflationary-with-2-73-or-a-look-at-the-inflation-and-supply-for-december-and-2021