Yes.

Basically these practices all share something in common: they're content indifferent voting behavior.

When you vote on your own post farms, or swap votes, or sell votes, you don't care about the content itself. If the content isn't the thing influencing your decision, and this becomes widespread over the entire platform, than we have a worthless platform.

That's basically what happened for the last 2 years but the new economic incentives gives us tools to fight it, such as free downvotes.