A really clever piece of work by @crokkon. Unfortunately it's harder to pinpoint votes made by Steemvoter, and as this service is one of the oldest (I use it), I suspect there is a reasonable number of votes, and some of the larger stakes are using this service.
I think automating a % of your voting is ok, but it's nice to have some spare for the new/interesting stuff that you find, and of course, the comments of worth that appear on posts :)
As another user put it, automation removes engagement unless you go through all the posts to see what is worth commenting on ;)