Mostly 1.

I've been downvoting posts even before the Hive price uptrend, mostly focusing on those that bring close to 0 value to Hive, barely try, etc. You can check my own and ocdb's downvote history somehow probably. Another one has been ranchorelaxo casting 10 daily votes at a whim within a minute on whatever is trending, often landing on the same people constantly who themselves get there by a lot of autovotes and in my opinion the content doesn't deserve the rewards.

I often ignore those who get it the first time, no matter the content, cause that's part of the lottery in pob and other times they may not make as much, but if the votes are constant, auto/blind and on top of that the content is mediocre, farmy (being posted daily just for the autovotes), author never makes an effort to forfeit part of the rewards depending on the content/effort that went into each specific post they make but still end up with the same rewards, then yes I have something against that and will attempt to protect the reward pool from it so everyone else receives those rewards instead.

There's tons of reasons why autovotes aren't good, have a bad effect on both the authors who become farmy/lazy/push themselves to post for those guaranteed votes and others who aren't on those lists and rely on manual votes or smaller ones with more effort/activity and often times better content. One way to disincentivize them is to reduce their returns a little, bear in mind I say a little cause I'm not a fan of zero'ing post rewards on content and when I say content I don't mean posts like this one we're commenting in right now that has a bunch of quotes and revolve around previous downvotes.

Good autovotes are those who spend time to adjust the vote strength, remove and add new authors to it frequently and do a little more effort to make sure it's fair compared to everyone else. There's some that do it well, many that don't because they either don't care or just enjoy earning passively too much. The linear curve has made it easier for autovoters to not care, especially those who were interested in maximizing returns, so one of the few ways to combat that and attempt to get them to do better is by downvotes. It's not always about the author alone.