It sounds good, unless it’s wrong.
Basically we’ve already seen what happens when you let a 25kyu bot take 9 stones on 9x9 and still lose, you get players hitting 27dan rank.
If you force a bot to maintain a falsely high level and reward players who beat it, you can potentially inflate a lot of users ranks.
If you force it to maintain a rank at falsely low level, you’ll massively deflate the users ranks that challenge and lose to it.
I would be very careful which bots you chose to anchor, if going down that path.
KGS uses an anchor system for humans, which you’d think would be more sensible but because of the recalculations the system does to keep those players fixed it wildly fluctuates everyone else’s levels.
Now it’s an exaggerated effect for KGS because even inactive players get recalculated.
But, if you anchor say bot ranks (badly), you will certainly cause wild fluctuations for the users that play them (maybe not so much everyone else), but in turn those effects spread slowly to the rest of the player base.
So we could run into an inflationary or deflationary effect for certain rank ranges.