Lost 300 BTC by "investing" in BTCST ....... 
300 Bitcoins?
Who told you to put all your eggs in one basket? This mostly happens when people don't think before investing somewhere or when they get greedy to earn a lot of money at once and in that hurry they just do it without any research or something about that source they are investing with.Yeah man its an huge amount to loose, I mean if I loose that amount then I would surely get an heart attack or even I get mad, its better not to put all money in bitcoins as we never know what will be the outcome.