For the calculations above, I subtracted randowhale's upvote amount from what my post already had.
Yes, apparently the more cash a post has, the higher the income from each consecutive upvote. However, there are three things to consider.
- Minnows don't get a lot of cash on their posts, so randowhale can't help them much.
- A randowhale vote on a post with a reward of several hundred dollars is higher in absolute terms (10 bucks is not a bad tip, even if the payout is $300), but how many posts get high payout? Maybe one percent of everything posted?
- The new hard fork will (supposedly) remove this mechanism. An upvote will give the same amount, regardless of the already accrued income on the post.