How can it be money laundering or tax evasion when bitcoins isn't issued or regulated by any government? That's the one of the privileges you get if you use bitcoin. You don't have to pay any tax, you don't go to jail for hoarding money or so
You are either severely misinformed or ignorantly uninformed
While keeping and using Bitcoin in general cannot be considered money laundering (unless you deliberately go for that, of course), but it is certainly not so with taxes as you seem to assume. The fact that the government didn't create, doesn't issue or regulate Bitcoin doesn't in the least mean that it is somehow tax free altogether. The government likely didn't build your home either (provided you have one in the first place), but you still have to pay a property tax on it. With Bitcoin, you have to pay an income tax on your earnings that you obtain via Bitcoin operations. It is easy to avoid this tax, but that doesn't make Bitcoin less taxable and your tax evasion less illegal. Sorry to dispel your illusions on this account
Ya it is true that the users dont wanted to pay tax so he is just ignoring it or wantedly he is just commenting here but he knows that if their government states bitcoin as illegal then obviously he will be more worried if he is holding bitcoins in high stock. Some country are just ignoring the bitcoin but having the close watch on the transaction and uses of it and some country are making steps to curb bitcoin and its users.