Also, It's not a hard limit. Users can login and change it.

That is exactly my issue; its not a hard limit. So tell me how will it stop abuse ? It just makes everyone have to log in and change it and penalizes passive investors and small content producers who may not keep up with the changes? To the major abusers its a meaningless change as they have enough vested interest to log in and change it. You would find most content creators would support a hard limit of 1 autovote post a day. This change does nothing to stop people using your service to autovote shitpots on puppet accounts 10 times a day.

Content creators need more real people than auto-votes.

Then who are auto votes for then if not for content creators ? Tell me that? Why offer the service if you don't believe they should be used? Just offer a curation trail only service ? Then you effectively crown a few kingmakers like curie and centralize all the votes via a few major curation trials. The Patreon model of rewarding creative producers per output unseen is one of the biggest in the industry; auto votes allow you to support an artist. If you don't like what they are producing you can remove your support. Content creators is exactly who autovotes exist for, either directly or via curation trails (well unless you have the opinion that they are there to facilitate networks of interrelated shitpots voting each other). Not everyone has time to manually vote and want to support people. Hence Hive.vote exists. All you have done is change the settings against the opinion of the user base wile allowing them them change it back. All this does is penalize people who don't see the change has been made (which is a lot).

The elephant in the room here is that you can't manually curate and receive a decent curation reward with the way the exponential decay on curation rewards work (unless your online all day looking for posts which is not possible). Hence people autovote to get their votes in at the right time .