Yes, let's actually examine the value of potcoin. Afterall, 1 day of trading sure gives you the accurate picture does it not? Here's a more holistic viewpoint on the matter, the graphic is a bit cludgy but it's all I can do right now. Examining from start to present, we can see several key events on the life of the coin.
Inception -> Feb-2014: The initial value went up, as most coins did, because of interest and hype.
Feb-2014 -> March-2014: Value begins to lower, pump/dump runups are dying, people panic and call for halving
March-2014 -> April-2014: Halving work begins; partial runups and dumps over the 4/20 hype; 4/20 was perceived as a flop, panic selling ensues
May-2014 -> June-2014: Halving schedule announced, more panic selling
June-2014 -> July-2014: Pump/Runs/Dumps, market use actually dies at this time, multipools had a field day
July-2014 -> October-2014: Some normalization, stagnant market
October-2014 -> Novermber-2014: Someone hits the net and bumps difficulty, a run/dump for a couple of days spiked the price
November-2014 -> January-2015: Continued stagnation, trades continue to die out
January-2015: Second Halving, 2/3rds of the network drops off (likely multipools and heavy supporters) long enough for difficulty to dip, and then they return with additional multipools to take advantage of the dip. This begins another synthetic run-up and sell-off.
I also included a very scaled value graph to illustrate just how the value looks in reality over time. 250% increase? Yeah, if you only examine 1 day of trading difference after people run the price up. Also, notice that the first halving is when things basically just tip out of the canoe. You would've had less trouble from multipools if you hadn't halved, just let the thing crash and they would've left, leaving just the hardcore supporters of the coin to keep it alive. But, this is all in the past.
Expanded charts of recent 3 months, highlighting an example of a pump/run-up/dump. A spike followed by sudden dropoff (chart 2) forced the difficulty to hop up (chart 3), which allowed the perpetrators to stimulate a brief market run for profit, which ended at the beginning of November. This is what's going on now more than likely.
At the same time, I believe the longevity of this coin is truly in a lower value, which is why I say (up above) that it's normalizing itself somewhat. My thoughts on this stem from the fairly steady hashrate. Historically, this coin has never sustained above 10gh for long periods, the fact it hovers between 2 and 7 is good. Bitcoin did this for years until it became tangible. It's still going to need political affluence to gain much ground in the legal market, at which point the value would gain traction.
This is why coins which establish market use prior to launch have faired far better than ones like this which hope market use comes after inception. NLG comes to mind, they've done fairly well over the long term and had market use right from the start.
Still haven't read that link the other person posted, this is just a post in reference to the synthetic hype of a "250%" increase. This is a good time to make short-term profit, but it won't last. Buy on the next dip.