Hi there. If a piece of trivia you added was removed, please don't add it back; it was removed for a reason (in your trivia's case, it's because things regarding the community, such as "This hat is famous for being [YouTuber]'s signature hat" or "This misc is frequently used by [community subclass]" are not official trivia, and so are not considered valid).
To better understand what is or isn't valid trivia, please check Help:Style_guide/Trivia.
Cheers.
