Bear critical mass in forum achieved.
I spy weak hands.
There is only one way to interpret "I'm dumping 75% of my coins"
"I have already dumped my coins, and I want you to sell them back to me cheaper . . ."
One of the major problems with bitcoin trading, is that many of these day traders loose bitcoins, but at the end of the day, or week, the fewer bitcoins are still worth more useless dollars. There is no real penalty for being a dumb trader, and so it continues.