In every country in the world, except for maybe Somalia, I guess, the basic deal is that if you (as a resident) earn, you're supposed to pay taxes.
If you live (the definition of which being where things get kind of wiggly) in Taiwan, the government kindly requests that you surrender a percentage of your earnings to pay the grannies who sweep up the park at dawn, keep gas in the garbage trucks, and bang out Lee Teng Hui's friggin rent.
Among other items.
You may not like it, but it's a pretty standard arrangement across the globe.
Granted, we live in a country where weaseling out of paying taxes is pretty much the national pastime.
As has been discussed before, good, bad, or otherwise, the ROC Tax Administration has decided that the best way for them to try and enforce the arrangement is to, quite literally, follow the money.
So they couldn't really give a monkey's how much revenue one generates offshore, digitally or otherwise.
They're perfectly happy to sit drinking Old Man Dirt Tea until the moment that you attempt to reconfigure those earnings into spendable readies, that is, actual living NTzers, whether in actual wads of purple paper or digitary numbers on an accredited bank's computer.
That's the moment when they change their blue and white sliders for proper shoes and start noticing you.
So if you have an account back in the US or the BVIs or Honkers, into which your pay is being deposited, you're laughing. And they don't care.
Or if your PayPal credit is like DM8.5 mungogingillion, you're laughing. And they don't care.
Since, at this point in time, at least, landlords and noodle stand guys don't accept bitcoins, though, sooner or later you're going to need the kwan, and that's where they DO start caring.
Anyone who's had even a small amount of money deposited from overseas, they know that the banks have to expedite more paperwork to free it up than Hitler generated invading Poland.