Wikipedia:ANI's discuss rule

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The

The new user discusses it with the editor first

• The editor will react aggressively and with abusive insults. If the new user is polite in their message, the editors' friends and followers (who are alerted via their
  boomerang
  the thread.

The new user does not discuss with the editor

• The thread will boomerang against them because 'uninvolved editors' (aka, the editor's supporters who blindly defend them no matter what the circumstances) will blame the newcomer for not discussing the matter first, and giving the other user a chance to fix it. However, oftentimes the issue has been repeatedly brought up to the editor in question and they'll continue to ignore it or react aggressively when the issue is brought up. Because of the established editor's reputation, few will want to criticize them, and so they never face sanctions or even proper scrutiny.

Either way you slice it, this rule is systemically biased in favor the established editor with a lot of followers. It is thus, in practice, not a problem solving or dispute resolution rule of any sort.