I really just think they are making people keep track of so much and do all this paperwork as a deterrent to keep them away from crypto. I mean having to track the USD value of all the STEEM and SBD you earn? That's pretty much impossible. You'd have to manually log the prices every time you claim rewards, but when would they want you to snapshot the value? At the time you were upvoted? When the claim rewards button appeared in your wallet? Or when you actually claimed the rewards?