I find it funny that a lot of my followers or passerby's mention from time to time how generous I am when it comes to up-voting their comments, unlike other authors, which I just find absurd, and here's why:
You get a recharge on your Steem Power everyday, or for as long as you don't use it, so for me, usually by the next morning, I'm back to full power again, so I use it on all the people who support me.
So if you're an author, and you're not spreading the love around via your Steem Power each and everyday, you're essentially throwing it all away at the close of business, as if it's some kind of dirty old food nobody wants.
Why not use it, because you can't save it to have an even more powerful up-vote for your own posts, so it can't be a greed or selfishness thing can it?
I'm just saying, we're here on Steemit to create and appreciate, and one shouldn't go without the other.
Now, I do understand the fact that there is a ton of spam on here, especially from the third world countrymen, but you can usually see right through those comments as I do.
I just ignore them, but if you have good followers, who appreciate and comment on your work on a daily basis, show them some love with a 100% up-vote if they deserve it... because why not?
Your Steem Power is made to be used, so start using it... ya damn dirty cheapskates!