I have challenge myself not to vote my own post here on steemit and I made it. It's truly a tough challenge knowing my vote is at around $0.06 and most of my post earn only around $0.00 to $0.03. I hope I can maintain not voting my own post even I have a huge SP.
Why don't you try to challenge yourself too. Try not voting your own post in 7 days or month or year and gave that vote to a complete stranger in the steem blockchain.