Should we add the tag alien to the posts of superman? Superman is an alien, the fact that he doesn't have green skin makes us forget that he is indeed an extraterrestrial being. In the comic books, animated movies, videogames etc, everyone knows that he is an alien so is not a secret or some kind of spoiler. And even in the wiki of the character explicitly reads the word alien. From now on if you encounter a post of Superman please add the tag alien. What do you think?
p.s I apologize if there's any misspelling or grammatical error. You're welcome to correct me.