At least not for me...
Have 2k sitting in MT Gox in cash, havent touched it for 3 days.
I decide to play... Hey bitfloor is selling for 2$ more, buy bitcoins at GoX, send to Bitfloor.
45 mins later no coins and my arbitrage opportunity is gone...Then... blockchain splits..?
Had I left it alone id have doubled my money on gox, with more money to be had in the next day.
I mean this is part of history... but so damn painful. CAN I CALL IT LESSON LEARNED AND BE WHITELISTED NOW?
Ugh what a day....