But seriously, as long as the right to use bitcoin is protected, or at least if the usage is ignored, by a single country, the bitcoin itself should be safe. Should some governments declare it illegal (in many jurisdictions it will take some fancy spin-doctoring to achieve this), the people who find themselves in these countries will be able to use the system anonymously, if they are careful. The best protection for bitcoin will be to achieve a wide acceptance in the "new economy" of online games and services. Should this happen most governments would find it extremely difficult to oppose the use of bitcoins outright. They may try to force some form of regulation down on the system but this will largely be limited to the places where they will be able to enforce a modicum of control, like the exchanges.
Exactly. The only point of control (for the governments) is at the local exchange.
Governments will outlaw the operation of Bitcoin exchanges, sooner or later, and that seem obvious to me,
I don't know why I am so sure

.
So, sharing the best practices of (legally) operating the Bitcoin exchange is most welcome.