[JamesBarney]

The government tax machine is in the business of collecting taxes, not running up fines. I've had several interactions where the IRS was totally with in their rights to fine me but they waved each fine because they understood it was unintentional.

The only times I've heard of the IRS going after people who unintentionally violated the rules, they were intentionally and obviously violating the spirit of the law but thought they were within the letter and were wrong.

In my experience you can make a good faith effort to figure out what your supposed to owe and pay it. In this case the IRS will treat you fairly and waive all types of fines. Or you can try to aggressively avoid taxes that you should owe in spirit. And in this case you have to be damn sure you're within the letter of the law because the IRS will try to hammer you if you color outside the lines. These seem like two fair options to me. And everyone I know who was slammed by the IRS was doing the latter.