If in fiat there is money laundering, is there any possible way in bitcoin world is there also case for those people who are carrying too much bitcoins in thier wallet due to thier illegal activities? I think just like bank, the rules in international bank will slso apply by the government on bitcoins. I think putting tax on every transaction was on the number 1 list of the rules. but the question is how much could it be? And if you purchase using bitcoins, aside from transaction fee, how much is the additional payment for tax?
They can impose taxes to sellers build and keep their sites, so the sellers will increase the price of their stuff. In the end the buyer will need to pay more per product because the government taxed it.
It's much possible this can happen when Bitcoin become more popular, the governmenr always create ''creative'' ways to take more money from the population, the imagination is the limit for them, and unfortunelly there isn't much we can do against them.