I actually think being able to upvote yourself is a great idea. Sometimes people create content and it doesn't get the attention or upvotes that they feel it should just because of the sheer volume of Steemit postings and they are able to pay themselves for the work they did. I don't think anyone should work at the total disposal of other people's control. There will always be people that take advantage of any and everything. That is no reason to ban everyone from features that they are not abusing.