Sorry Jorge I can't help myself, I just need to know why?
Because 90% of what has "bitcoin" in it
IS scams or stupid ideas. Starting with attempts to convince the unwary to buy bitcoins "because they will go to the moon" or "a hedge against inflation" etc..
For example, I already mentioned a couple of days ago that student of mine who had been offered to join some GPU-based bitcoin mining enterprise.
I have to check who is on the board of the Brazilian Bitcoin Foundation. I would almost bet that the creator of the BitcoinRain ponzi is there.
Are there a lot of scams related to Bitcoins... Yes
Are Bitcoins themselves a scam... obviously not
Before you disparage a paradigm shift you need to distinguish exactly what it is that you find the problem with. Of course this is a free market and people need to be informed and educated in order to avoid the downsides. But as an 'educator' Jorge I don't feel you're looking at this objectively and I also think you do your students a disservice by casting blanket dispersions on something that has the potential to offer them quite a bit of opportunity. You remind me of talking heads back in the 90s telling everyone to stay away from that dangerous internet because it would corrupt public morality.