I will never forget my first mistake... trusting some dude "Tawsix" and his bitcoin mining operation SIN... I lost the first 100+ coins I mined to him.
and GLBSE, but I don't blame Nefario.
We're almosr the same. My worst decision in bitcoin was not being careful on investing it. way back then, I invest the first bitcoin that i earn from a signature campaign without looking if the site was trusted or not. But sadly in the end I got scam and the only thing that I did was to move on.