Ja, aber in welchem Fall tauschen sie es? Wenn sie es entweder als sicheres Aufbewahrungsmittel sehen oder aber eben interessante Dinge damit kaufen können.
Why java: java comes with a great lib full of networking functions, UI classes, math classes etc etc. It also runs as a binary on intel 64, intel 32, linux, windows and even android if you do it right.
AwesomeTRADER: what could you contribute to such a bot?
No. I think there's always a risk. And another problem is, that you might need lots of currencies. Maybe like 100 or so. I'm working at the moment to run lots of wallets on a machine.