Haven't the Chinese made moves to block trading Crypto currencies, hence the massive price drops?
No. It's all FUD, just like everything about India and Korea was FUD.
China's manufacturing industry has more investment in blockchain technology than anywhere else.
The first big dip was worries South Korea was going to ban it, they didn't, and said they had no plans too, so people started buying back in. Then Chinese New Year and the US tax season hit, so it dipped (it dips massively every January because of this, look at the last 3 years of graphs). Chinese New year obviously hasn't passed yet. Finally there was rumours India was going to ban it, and a day later they came out and said they weren't, but loads of people had already sold.
The main problem with all the above, is that compared to the previous years there are a lot f newcomers to trading. A lot of people who don't know what they're doing, and buying what the media was telling them to buy. Then when the market dipped like it usually does every year, they all panicked and sold what they had, driving it down to worse than previous dips.
The newcomers were a direct result of Bitcoin getting as high as it did in November/December.
How, when and IF we recover is anyone's guess.