I don't have an opinion on whether or not it is "good or bad" to upvote yourself. That being said I have decided that until My Steem Power has increased to the point that I have use of this mythical "Slider" that allows a user to adjust the voting power, I will be upvoting my post's and comments.
Once the slider becomes available to me I will re-evaluate whether or not to upvote myself.
The slider will currently pop-up at around 485SP (1MVests), talks go around about lowering this to 125SP (250kVests)...
I hope to get this option in the near future myself!
i hope that too. it's a long way to 1M vests...