Generally it's fine to upvote your own posts. Why would you post it if you think it's crap?
Generally, it's not ok to upvote your posts (COMMENTS- edited) because it drains the pool of rewards and it's very easy. I can make dot (.) comments and upvote it. It's ok to upvote coments for visiblity and it's ok to upvote whatever the heck you want if you are a minnow because there is no impact of that anyways. Go have fun and stay on Steemit! Basically, do what pleases you until you are a mature dolphin or a whale.
For money. Buy a bot vote, or self vote, and you have earned rewards.
There is a common perception that self voting is scamming.
In August 2017 the two highest paid authors on Steemit were @mindhunter, and @tamim. @mindhunter paid for all of @snowflake's upvotes, and @tamim just upvoted verses from the Koran he posted.
So, self voting, as does buying votes, associates one with scammers, in many eyes.
agree, some people are just here to make a buck a guess