What's up with the dumping and a 1BTC sell wall at ICO price?
It appears people don't like to join in the common sense party. But also, they could have changed their mind and taking a small loss in order to hope for a big gain in another coin. Also there is trying to drop the price and fud along to try get more at a lower value. There are many reasons. I cannot say why each individual is doing their thing, but it could be various all mixed together.