Government is already taxing it. At least all governments I am familiar with. People may not be reporting all their gains, but eventually tax agencies will have the info and pursue more of them.
Even if you believe Bitcoin is a ponzi it is nowhere close to running out of greater fools. Never under estimate the stupidity of people. Claims of it going to $50k is likely not impossible.
Is there any information on an ethics board or a method to exert pressure on a bank to release a client's funds? In brief, I wired money to my personal account at a significant Argentine bank in June. The transfer was executed without issues, but my funds have not been deposited by the bank...