Because sometimes there are things you just want to know.
- Creator Backlash: The Engrish virus, which happened in early 2009, has been officially disowned after worries of offending actual ESL people; it is never included on the list of past viruses when Grab Bag comes around.
- Creator Couples: There have been a few amongst the muns.
- Follow the Leader: Although the setting is a website rather than a physical place that characters meet in, because nobody is taken from their worlds permanently when they're brought together, DDD can be considered the first reverse jamjar.
- Marth Debuted in "Smash Bros.": Many of the most popular characters in the game introduced the majority of the muns to the existence of their canons. The biggest example is Karen, who was around long before the Heartcatch Newbie Boom and taught all of DDD that Pretty Cure was a thing that existed.
- Mutually Fictional: Many characters have engaged in mutual fourth-walling.
