It is useless to set a tag on a Scenario, a Scenario Outline or an Examples when this tag is already defined at Feature level.

Noncompliant Code Example

@mytag
Feature: My feature

  @mytag @othertag               # Noncompliant: useless tag @mytag
  Scenario: My scenario
    ...

  @mytag                         # Noncompliant: useless tag @mytag
  Scenario Outline: My scenario
    ...

    @mytag                       # Noncompliant: useless tag @mytag
    Examples:
      ...

Compliant Solution

@mytag
Feature: My feature

  @othertag
  Scenario: My scenario
    ...

  Scenario Outline: My scenario
    ...

    Examples:
      ...