Can someone point me to the new rules, or explain the changes? Are all addons going to be banned? Only certain ones? If so, which, etc.?
Just join the discord of any of the larger addons, like DBM or Weakauras. You’ll get better explanation from the authors than a recap on GD.
Or, wait for Blizzard to make their “official explanation” blog post they said was coming in the next few days, a few days ago (aka it’s probably due now).