The self upvote is so controversial.
Some people are saying that is ok to upvote yourself and reward your self because you invested your money or time here and you are free to do with it what you want.
Othere people are against upvoting yourself because they think that is bad for the website and that if you upvote yourself so you content is not that good.
But let's talk about facts, I love facts and I am investigating on that.
Look at me I wasnt upvoting a lot in 200 days on steemit, I upvoted my self 43% and the other almost 60% I upvoted people and I was earning cents from my posts :
So I tried to upvote my self much less and I still earn cents, look at this chart of upvoting my self in 15 days, I reduce it to 25% :
But nothing is changing, I still earn cents from my posts and the only post that I have about $14, I bought upvote there but it's an other story.
Do you agree with my that if we don't upvote ourself we will earn more ?
I see that I am earning even less, so why we are all here on steemit ? Just for fun ?
The funny thing that most people that are against the self upvote don't earn a lot. But people that earn a lot support it. ☺
Keep following 
for more thoughts !
for more thoughts !