grondilu, I'd be interested to hear if you made profitable use of the coins in the time that you held them, or if this was just an experiment that cost you 3.9 BTC.
I did sell some of these 96.1 BTC and then bought others at a lower price.
But I could have used my own bitcoins.
So to tell you the truth, it was much more of a proof of concept that I wanted to make.
Might be usefull for my reputation if I have to borrow bitcoins in the future, though.