I don't know if the digger made any private deals. He made none with me. I bought some coins cheap on poloniex when he dumped there. You seem to be implying that something unfair happened but as far as I can see the coins were sold to the highest bidder on a public marketplace.
I didn't blackmail anyone. I proposed switching to a new coin and the idea was unpopular. I never threatened anyone with anything.
The problem with a big dump is that it moves the price a lot. The dumper doesn't get as much as they expect to, holders find their holdings devalued, etc. The price now is much smaller than it was before the big digger dumped his coins.
It's not clear that anyone has 200% profit. The current price is over twice what the digger dumped it down to, but last I checked the entire buy book at poloniex was around 70 BTC, so if "my friends and I" attempted to dump the coins he sold to us we would probably make a net loss.
I'm not sure what point you are trying to make. You seem butthurt for some reason, but it's hard to know exactly why.