I use steemengine and they have an autovote service that I do not use. But I do get maybe 200 votes a week from there by baby accounts with 15 sp and 5% power. I think many people come in and set up accounts only to save the name in case they want to work it later. Just these few are trying not to waste their account time.

I look at @arcange daily reports too and you can see the overwhelming number of dead accounts over there.