I was upvoting my own comments at the last minute for a while, and some one on here sent me a nasty message and said "Do you really have to upvote every one?" so it enraged me and I downvoted that guy for a while to 0 and then one thing led to another and I was downvoting everyone. It was like a slippery slope, and it all stemmed from me upvoting myself. Luckily I got out of that bad negative feedback loop.