With a lot of whales powering down and a lot of new faces, plus the invention of many new Steemit Apps changing the content around here— lots of the old manners promoted here will have to change.

That being said, here is what I have learned is considered acceptable for anyone will less than 10,000 earned SP.

Upvoting your own POST is fair since you put in time and effort— because there is no guarantee you will be upvoted by anyone else. This gives you a little-guaranteed reward for your time and publishing. After all, this is published. Whatever you post on the blockchain is considered published. So your master is fixed. It's sort of like digital copyrighting. Digressing, for this reason, it's considered acceptable to upvote your POST.

I suggest you do NOT upvote your post when publishing automatically. This is because your voting power may be low :) Publish, and always upvote yourself when you are back to 100% so you get your full self-vote.

When your own vote reaches $1-$50 then you may be considered rude by some people for self-voting. However, it also depends on how much quality your content contains. If your post is 10 pages long, beautifully formatted, grammatically accurate, etc. NOBODY is going to be mad if you upvoted yourself for $10.

COMMENTS

It is considered tacky to upvote your own comments. There are some exceptions.

• If you upvoted the person you responded to and they upvoted you back, you can generally get away with upvoting your comment as well. You just don't want to be the FIRST person to upvote your comment.
• If you think your comment is VERY important or VERY helpful, you can upvote yourself to be SEEN. This temporarily "pins" the comment to the top. That is because the comment with the most upvotes rises to the top.
  That's called upvoting for visibility and is common with answering important questions factually spam reporting/warnings, and so on. If you're just leaving a regular comment though, you can look a little attention-seeking doing this if it's not a valuable comment.

Lastly, if money is a concern, you can make more by voting strategically through curation rewards. You can go to steemfollower and set yourself to upvote certain people automatically. Then you can set your upvote to only do that under certain conditions. You want to pick people whom make high paying content who ALSO make great content, consistently. I know, this sounds sketchy. Then you will autofollow them and upvote everything they post at 100% at the 25 minute mark. And you set it up so you only autovote when your voting power is over 95%- preserving some of your votes for manual curation.

Also, try steem plus which will let you upvote more people by adjusting your vote weight. Using busy.org as an interface gives you more features. [note: that is an invite link with referral and if you choose to use my referral, it will give me a bit of a boost without costing you anything. Busy is 100% legit and you look at the tag #busy to see how many people use it.]

Hope this was helpful.