Someone is massively dumping
Blackcoin is up 100% in a few days, some are taking quick small profits, but really we are going much much further than this. It's hardly even the beginning. My coins are all safely sitting in my wallet, not even thinking about selling them - pump or no pump!
PS. The quality of posts in this thread are amazing compared to the dross you get in other coin threads

Yes. Probably before the end of 2014 Bitcoin will have a monumental resurgence as it continues to go mainstream. Inevitability, folks. The writing is on the wall on that one. The secondary/tertiary markets, in this case altcoin, will track upward with the primary market as they invariably do. A few standouts will reap the most benefit, and Blackcoin will be one of them. Altcoin awareness has grown enormously since the last Bitcoin surge. Vastly more miners, but not only. As the next wave of mania sets in for virtual currency in general there will be a great deal more spillover-effect into the altcoin market than any previous time has seen. Volume and liquidity of altcoin trade is trivial now compared to what it will be as investors and players stampede in, particularly those who are hungry and looking for greater risk/reward scenarios. And in an up-market, that means a lot of people, a lot of new money-flow. Blackcoin is a no-brainer for reasons mentioned many times on this thread and which I needn't bother repeating. I also foresee major marketing and branding initiatives coming into play on this coin as it evolves and matures. We have scarcely begun. There will be cocktail parties on yachts people. I look forward to seeing you there.