Yes, I have check the AH that the prices remains the same, they may even more increase as people are trying to get back what they lost.
if the intents is to set a healthy economy, then the right way is, to first leave the needy prospered. and to tax ( squish ) from the rich accounts. and there are many ways ( through query, activity )to find out which one is actually playing and which one is a duplicate account ( or has a different character to for money saving ).
Beside, wouldn't the rich character buy items of value? in this case the squish doesn't affect them as they may sell them back. Whereas, it only affected new gamers that doesn't purchase coins and farm their gold by farming their professions.
This squish is rather set to push (the needy people) to purchase coins and trade them for gold, which will result again to an unhealthy game economy.
Anyways, I believe that there is a better solution, a one that doesn't affect new gamers or those who spent hours farming their gold and of which they have been deprived
"It's like setting a swimming competition in deep sea water where the Sharks and the horses have to compete"