> The author seems to believe he cannot accept tips, because of tax and regulation, but he doesn't point out what specifically would cause problems here.

I'm in the US, not Austria, but from what little I've seen of even the US's legal and tax system, doing something with money that you don't fully understand is a risk. I am glad that there are people who are willing to take that risk in the name of improving society, and pioneer the use of Bitcoin and other alternative currencies.

But nobody should be obligated to take that risk if they don't want to. I would be completely unsurprised if some emergent behavior between the US tax code and other laws meant that if you were merely aware of people accepting tips on your behalf using your name, even if you didn't ask them to, there are tax or legal obligations. I would be completely unsurprised if the law says, if you ask them to stop and they don't, you're _obligated_ to initiate legal process to make them stop. I don't think the law says that, but it's certainly way less crazy than lots of funny corners of US tax and commerce law.

I would also be completely unsurprised if US tax code got complicated when you're accepting Bitcoin as payment. I'm dimly aware that the IRS or FinCEN or someone issued guidance recently that Bitcoin doesn't count as a currency but instead counts as a something-else... and not being a cryptocurrency user, I haven't bothered to learn what that something-else is and how you're supposed to report taxes on it.

If someone is willing to figure out how the law works, or pay their lawyer to, more power to them. But nobody should be _obligated_ to.