Comparing the percentage of comments that are negative versus neutral/positive on each platform, you can also see that (a) Twitter has always had proportionately more trolls than other platforms, but also (b) trolling has massively increased post-Musk.

Note 1: The reason there were no negative comments on FB is because my page there has been shadow-banned since Aug 2018 when climate change & clean energy were added to the list of politically sensitive topics and FB refused (twice) to verify my identity, the step they claim is needed to post on those topics. So only a tiny fraction of the people who already follow my page see my posts there. They are not shared beyond that tiny bubble.

Note 2: it's also interesting that negative comments on Twitter/X, LinkedIn and Threads are nearly 100% denial, whereas negative comments on Mastodon are 100% from people worried about climate but who are mansplaining me or who want to harass or attack me for different reasons (e.g. not explaining the science the way they think I should, saying that climate action can make a difference, standing firm on the social science of effective communication, being a person of faith, etc.). This platform is #1 for "friendly fire," which is why I still post but don't engage here very much. It's not good for my mental health. If you want to see more of my posts here though, no worries: I have a bluesky bridge account @katharinehayhoe.com

Onward!