Honestly, this is amazing statistical information I actually was trying to get. I've been observing habits here and have been wondering about self-voting for a good while...especially with whales and the way they protect their voting power.
I probably don't mind upvoting oneself for new stories...but for comments...especially when it's a one-liner...it's pretty awful.
I can totally see why a whale would want to do it considering how much money they invested...but I do have an issue with not sharing the wealth via decent voting power upvotes in some way.
At the end of the day, however...I can't really fault one for having a set plan for their money...even at the cost of the steemit community.