There was a question a while ago on motivations behind downvoting: https://forum.effectivealtruism.org/posts/KZkDBm6vuPMFALjQx/why-do-you-downvote-ea-forum-posts-and-comments
There was a question a while ago on motivations behind downvoting: https://forum.effectivealtruism.org/posts/KZkDBm6vuPMFALjQx/why-do-you-downvote-ea-forum-posts-and-comments