Dev, you should improve the website, specially on mobile phone it doesn't look good. But I understand that you have a job or university so take your time and make sure it will be good. Gopnik Coin is a long term project, a cryptocurrency that will be used by Slavic people and other squatters for decades to come.
About the price... it's good that GPK is finally listed on exchange so people see that Devs have serious plans with the cryptocurrency and they are following the roadmap.
But you also have to know that TradeSatoshi exchange has low volume and there are not enough people there, willing to buy GPK, so when someone who mined 100K or more GPK tries to sell them ASAP because he is an american spy, the price naturally drops because he needs to sell to people who placed underpriced offers.
Don't worry, when GPK comes to bigger exchanges and marketing reaches true gopniks, the price be much more than the current ridiculous 8 satoshi. Smart people will buy now at low price and start staking (huge 100% interest) and it is completely possible that you will make 10x or even 50x profit after one year because of staking and higher price.