You can do this with /api/v3/community/hide, or in the database by setting community.hidden. Unfortunately this is not available from lemmy-ui yet.

From a comment by nutomic: https://lemmy.ml/comment/16090216

Context: https://lemmy.ca/comment/13891923

Not sure if that feature was known to everyone, so sharing this as its own post.

  • poVoq@slrpnk.netEnglish
    5·
    4 days ago

    Will it hide them from other instances All feed? Because that’s where usually the main problem posters come from.

    • nutomic@lemmy.mlEnglish
      8·
      4 days ago

      No this only affects your local instance. So it doesnt affect how your communities are shown on other instances, but it lets you hide remote (or local) communities from All.