It's the same thing like last year ...and again in some months they will all come back and cry like little babies!
First of all, dumps are made by market makers/manipulators. Some panic sellers join this party as a losers (so called "Gamboni Play"). 90-95% of all traders must lose something, to give their capital to the winners. Laws of jungle:) The more exchanges, the less manipulations on price (but manipulators exists always, despite of number of exchanges, but for price it's not so painful, dumps looks like health corrections). That's also explain, why in case of XEM we have so thin market with only few exchanges. The main purpose is, that it will serves good for manipulators. Who are this persons? I dont know, so i dont even try to write here their names. But i have some suspicions and of course hold these for myself.
The "best blockchain" marketers, and whole NEM Foundation should seek fast resolve for this problem, in other case... I dont even want to imagine that or write it here, what will be in other case. All i know is that many people avoid investing their money in so fishy situation. Moves of price in case of XEM are for now only in cathegory "Pump&Dump", and not health growth. And of course postponed Catapult (in May Lon Wong has mentioned about Summer) gave to market some uncertainty about that matter. Now we have December as a Catapult release time, but who knows, every delay makes less confidence among market players. They move to many other promising projects, even with not so "cosmically best blockchain technology" but with much better marketing.
edit// and "support" 4700-4800sat broken, as expected (by me;))
If all you're seeing is investment and P&D schemes, you are looking at this whole community/tech the wrong way.
Cryptocurrency is much more than just simple trading games, it goes much more beyond that but it will not be so obvious until the strongest coins chosen by the market become mainstream.
Do not worry about price of short term gains and look at the long term benefits of such technology. If all goes well, this tech will change the world hopefully for the best.
I respect Your opinion. But for now my point of view about Cryptoworld stays unchanged. It's a jungle, where the stronger eats the weaker. And afterall this is not the place nor time for academic discussion about that;)