I just came over from the 'Investor Games' subforum (hope I got that right). A guy there said he came across a site asking to double his bitcoin, he paid in $20 and got $40 the following day or so. He then went for a higher plan of $300 hoping to cash out $600 but they asked him to pay in another $300 before cashing out. He got confused and was asking for advice.

I think I've been there before. Before I became a forum member. I once came across one of those scam sites promising to generate bitcoins. Thought it was real, but when they asked me to pay some transaction fee, I was stuck. I had no money to pay the fee. With the benefit of hindsight, I know I'd have sent them the 'transaction fee' had I had the coins to send them.

Now, what have been your experience with internet scams?
How do we help people not to get scammed?