Super technical but great points! Let me try to connect this with something else that I can't get my head around... are bitcoin or monero or any other mined coins, taxable at the value when received?

If so, then effectively, we will be under the money if the mined coins or steem rewards will be sold less than the effective taxes. What do you think?

Thank you for sharing your valuable thoughts. Upvoted resteemed and following you :)