Downvotes and other negative-reputation systems make online behaviour worse rather than better.

Drawn from what Raph Koster said

What this subject means

social media Feeds and the platforms that rank them: what an algorithm decides is important, and what curating your own sources costs.

What Raph Koster actually said

Do you hold this korrent?Do you also believe this?

Shared subject first, then similar wording. They may agree or disagree.