"On Reddit, a subreddit called r/undelete automatically tracks posts that reach the top 100 of r/all and then are deleted, either by volunteer community moderators or Reddit’s staff of administrators. In the last 48 hours, dozens of posts caught by undelete are about Thompson, meaning the most popular type of recently deleted content is about the assassination. Many of these posts had thousands of upvotes at the time they were deleted. On r/longtail, which tracks deletions that are outside the top 100 posts, there are many more about Thompson and UnitedHealthcare.
You can get a sense for the vibe of Reddit in communities like r/nursing, where nurses are posting horror stories about their patients dealing with insurance denials and memes about Thompson roasting in hell. “Please don't let this assassination go to waste,” one nurse posted. “This is the best time for nurses to speak up and contact their elected representatives and ask for action and legislation requiring accountability from health insurance companies and private equity companies that extract as much profit as possible.”"
https://www.404media.co/brian-thompson-social-media-reactions-reddit-facebook-twitter/