All of today I have been very sad because just last week I sold my 38 Bitcoins for $7.8 each and now it's $18 each
Your sadness made someone else very happy. This speculation game is a zero-sum.
I am now wondering if I should buy coins now with the $330 I have in my Mt. Gox account or should I wait for the bubble to pop?
Assuming we know the right answer: If we give you a good advice we benefit you, but we hurt the person who would've acquired your profits. If we give you a bad advice we benefit that person, but hurt you. Again, it doesn't really matter