That's quite insane - basically any Hive income is just a microtransaction. Even the best paid posts generate just like $50 for the author. Filling tax refund with like a 50 curation and 10 author rewards per day, often of like $0.1, is sheer madness to me.
It is indeed, impossible to track all these microrewards. I would never ever disclose crypto earnings voluntarily.
Yes, insane, that about sums it up.