So adding something in here... If you post smart then you can actually get 11 upvotes of 100% in a day. You see if haejin had posted all 10 of his posts without voting and then voted them all at once then his voting power would be
0.9810=0.81707280688 or ~81.7%
however
0.9811=0.80073135075 or ~80.0%
since you regenerate ~20% of your voting power per day you would get an extra vote... Now lets calculate the returns if you were to vote 11 times a day instead of 10.
Using your number of $0.85 at 100/100 (100% vote with 100% VP) and using the formula to calculate the sum of geometric series we can get that in one day someone with that amount of SP will get
0.85(1-0.9811)/(1-0.98)=8.46891759313 or around $12.03 USD per day with an assumption of steem being at around $1.42 and is collecting at 100% powerup (its all steem).
This makes the per anum ROI increase up to 30.9% however this is making the assumption that the value of steem doesn't rise throughout the year.
Currently Haejin has a voting stake of ~340,000 meaning his 100/100 upvote is worth $29.49...
10 Votes: 29.49(1-0.9810)/91-0.98)=269.726 Steem at 29.0% per anum ROI
11 Votes: 29.49(1-0.9811)/91-0.98)=293.822 Steem at 31.5% per anum ROI
And to answer the impending question, yes I am pretty sure he actually does this as he upvotes his own comments.
However, his self voting is chump change compared to what he is getting from ranchoalexo or whatever it is.
psst, the ROI using the 10,000 approximation and the calculation using haejin's current power will be off as the market has changed and none linearity between rewards from day to day. All of this is an approximation.
Also, I am not posting this comment in hostility towards you, I liked how you wrote the post, I just started thinking about it and yeah. I am sorry if it seems like an attack, more than not its me trying to engage... you know, silly engineer has troubles finding ways to engage with people.
Nice, I hadn't realized that. It is chump change compared to what he gets from ranchorelaxo, but no one is sure whether they aren't the same person. In that case the same math applies for his return, I think.