It will never be less profitable to vote for yourself than it is to vote for others when it comes to short sighted people. 50/50 won't change anything unless it is balanced with a counter incentive to vote for large account holders who guarantee curation rewards regardless of quality of content.

The proposed change to donate curation rewards back to the reward pool instead of the author is an interesting one. Every self voter will wait 15 minutes before they self vote increasing the incentive to vote for whales. More than ever, we need to balance these incentives with voting for hidden gems and underdogs.