I strongly disagree with the idea that self voting is wrong and should be discouraged, and I strongly would oppose any hard fork that removed it as an option. Steem Power is valuable because it represents influence on the Steem blockchain. More Steem Power = more influence. The ability to self vote is one of the things that makes Steem Power influential and therefore desired and valuable. Prohibiting self voting will make Steem less valuable than it otherwise could be. Yes, some people abuse the self-voting privilege, but the community can easily respond to such abuse via flagging.