I think UK leads here: https://skeptics.stackexchange.com/questions/54123/were-over-3-000-persons-arrested-in-britain-for-social-media-posts-in-2018 https://sk

I think UK leads here: https://skeptics.stackexchange.com/questions/54123/were-over-3-000-persons-arrested-in-britain-for-social-media-posts-in-2018 https://skeptics.stackexchange.com/questions/54123/were-over... (many links in the responses and comments, eg: https://www.independent.co.uk/news/uk/arrests-for-offensive-facebook-and-twitter-posts-soar-in-london-a7064246.html https://www.independent.co.uk/news/uk/arrests-for-offensive-... - " 625 arrests were made for alleged section 127 offences in 2010 " just in london)