There's sites like steemvoter and gosteem that offer automatic curation, you just set which authors you want to autovote on and at which time and it does it for you, often getting in front of the rest of the votes and receiving big curation rewards.
I think the box will be unchecked automatically after the next hardfork at least.
Ah okay that makes sense to me. Its definitely so cool of you to have been doing this all manually, I had no idea other big users just automate.