Don't wanna ruin this party, but announcing a new rate won't magically change the market.

Manipulation of market only works when the demand outweighs the supply or the supply is highly limited, whereas in Toribash the supply is much greater and easily produced due to unlimited access to TC boosters and various event prizes.
There is a reason why standard 20k/$ rate has settled for so long, it's because that's the point where TC boosters actually start somewhat losing their value even when maxed out.

What you might wanna do instead is voice sellers' concerns to staff and attempt to put an end to this inflation, as that could actually be productive. As far as I've seen there's only me and Insanity who actively try to discuss these things with sir and other higher-ups, but of course lack of outcry makes these issues easy to sweep under the carpet.
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Just to be clear, I'm not attacking or discounting this organization. If anything, I am very happy about sellers finally stepping up. Just that the approach of OP is rather inactive and most likely won't make a change that we desire