I am usually creating one post per day, and I don't have problem with upvoting it. I never upvote my comments, I tread it as abuse of system. The same like creating 10 post per day and upvoting them by own with 100% of your SP, this is abuse of system, last time I had seen a lot of account who do that i.e "photo from morning coffee" why not plus 100% VP which means 4+USD, "photo from afternoon coffee" whny not and the same - 100 VP etc. Of course it fully legal, but steemit had been created to award good quality posts of others. If I see that somebody put more than usuall to creat the post, and this post is good quality I had no doubt that it deserve for my 100% VP, which is just 0,01 USD, but it is my contribution to the system.