You do have a point about multiple accounts. I feel that most of my own posts should be upvoted, but I just feel that it comes off as arrogant to do it myself, and I want to be recognized for my talent (we all do). If I don't put much effort into it (for example, when I showed off a cute picture of my 2 year old for the fun of it) then I don't promote it in post promotion spots. That's how I operate anyway.