I edited a question in the re-open queue earlier, and removed the Marvel tag (it was tagged
avengers-infinity-war) because it seemed redundant. However, I was directed in a comment (Is Maw Peter's First Kill?) that I should have read the tag wiki first, and seen that it is a required tag for any MCU or Marvel Comics question.
To me, Marvel is implied in their own cinematic universe, and their comics. Why are we tagging things this way?