Nope, not at all. Ask a certified accounted. This is no different than US companies doing business in foreign currencies... you keep your books in USD equivalent values indexed to an exchange rate that is regularly updated.

As in, daily, weekly, quarterly. Gaming that also raises eyebrows at the IRS.

No conversion to dollar necessary. An American citizen say lives on the US Canada border and has a job just across the line and gets paid in Canadian dollars they are still expected to pay income tax. If an American citizen lives and works in France for a decade they are expected to file income taxes in the US every year. Income tax is just that, tax on income it applies to every citizen of the US no matter where they live or what currency they get paid in. BTC is no different.

LOL ok, good luck trying to pay your bills in Bitcoin haha.

Even if they never convert it to USD, taxes has to be paid on all revenues, regardless of currency.

The fact the transactions can be pretty anonymous makes them think they will be able to hide them.