If you monitor the action on Mintpal closely it almost seems as if two teams are battling it out. I call it pushers vs. blockers.
I've been trading for about 10 years (mostly shares), they are traditionally called Shorties and Pumpers.
the shorties job is to dump shares/coins and try and cause a panic sell so they can buy back cheaper (whether they Short sell (on stock markets) or simply dump their own coins the principle is the same)
the pumpers job is to try and spark a rally so they can cash out and then buy back again after the pump subsides.
every market has them.
the thing I have noticed is that trade bots don't seem to have taken over the LTC market in Mintpal yet so the trading is a little Fairer for the average Joe Punter.
good luck to all... I'm sure it wont be long before the Whales and Trade-Bot operators step in to try and Manipulate the heck out of this market too.