Stop getting excited about the $102. It's not a big deal. It's just ONE successful buy order.
Here is exactly what happened:
1. MTGOX member 1 wants to sell Bitcoin.
2. MTGOX member 1 states his selling price. In this case, he inputs: $102
3. MTGOX member 2 wants to buy Bitcoin.
4. MTGOX member 2 selects: immediate buy
... MTGOX searches for cheapest buy offer.
5. MTGOX member 2 finds member 1's buy offer.
6. Transaction complete.
He could have sold 0.0002 bitcoin for all we know for $102 - and it would have still showed up Bitcoinwisdom.
Last I checked for bitcoin wisdom to actually show the drop on the chart (and not the 'last offer'),
ALL buy orders up to that value have to be removed.
Care to explain what your "ALL" statement means? You realize that an exchange means "exchange". It means I offer to sell a product for x, a buyer agrees to buy for x, and the exchange completes the transaction for a commission. There is no such thing as ALL. If there were 100 bitcoins for $102, then yes, all buy orders up to 100 bitcoins would have gotten it for that price. But that didn't happen.