I'm not a supporter of the government so my view is biased. Your advice is good in general and I wouldn't want anyone to act on advice from a libertarian like me and get in trouble.
Well if you or anyone else wants to evade taxes then that's fine and is your choice, but I doubt you'll be fine if you get caught and you're facing hefty fines and possibly prison time. "I'm a Libertarian" or "I didn't know I had to pay taxes" "or "how can I pay taxes when I never sold my coins" really won't get you any sympathy if that time ever comes. Your beliefs are irrelevant to the government at the end of the day but it's the others I'm concerned about who seem to think they somehow don't have to pay anything.
That said, I find the value of BTC at the time of receiving it completely irrelevant and I've never kept tabs on how much it was worth on a specific date.
Well it's not irrelevant for tax purposes. The amount it's worth at the time of receipt is how much you should declare as earnings. If you sell it later on and make profit on the amount then you may be liable for capital gains taxes so that initial value is important once again.
How do you expect people to pay taxes on the value of coins that they receive?
How do you expect anyone else to pay their taxes? You keep a record of the money you receive for the goods or services you provide. The blockchain is already a ledger so there's not much you need to do. Blockchain.info even tells you the amount the coins were worth at the time of receiving them so it makes it easy to keep tabs on your profit and losses.
It's not possible to pay taxes in cryptocurrency, so by law you're required to do it after selling for fiat and that amount of fiat becomes the taxable income. Using an exchange is not a requirement, it's an option, a choice. Until the day they allow me to pay taxes in cryptocurrency they won't get a dime.
It's not possible to pay taxes in gold, melons or flatscreen tvs either but you still need to pay taxes if you are receiving them as payment for goods or services. And using an exchange may not be a requirement but paying your taxes certainly is. You can also just sell them for cash, but not being able to pay taxes in crypto isn't a viable defense in as much as it would be for melons or gold. You can easily just cash out the amount required to cover the taxes but if you want to willful evade all taxes on crypto earnings that's between you and the government.
With such an attitude you'd most likely have to carry a notebook everywhere you go and log every single thing you find or get along the way, then spend some time in the Internet comparing the prices to know what value it had the moment you got it and then take some money out of thin air to be able to pay taxes for all that stuff.
To give you a rather ridiculous example: a homeless man walking down the road finds a bike. Instead of happily riding it he should get it priced ant then sell a part of it to be able to pay the income tax. A teen that gets some cash for mowing a neighbor's lawn should add it to the parent's tax report, and so on.
Fortunately there's no way to find out who is holding what amount of coins, just as it's impossible to know how much cash Mr. Jones gave his friend for his birthday or how much money was in a beggar's hat.
I'm not worried about being fine or not. People that I know in person never shared the information about the cash they keep at home and are yet to regret it. I'm doing the same with both fiat and cryptocurrency.
I will have to pay a tax when I buy a property or a vehicle anyway, so that's unavoidable. Until then, I'm going to keep everything to myself and avoid unneeded snooping. If you want to tell the world that you're a cryptocurrency user in a time when they can as well take you for a terrorist or an enemy of the "system", be my guest.