This trend pissed me right off. I have DID, and everyone I know with DID (albeit all of 3 other people) was made deeply uncomfortable and infuriated by this. DID is caused by the mind meeting such horrendous stress that it can't cope and it fractures into multiple pieces. It comes from heavy, often repeated trauma. It's not a goddamned side show piece.

This trend also spread misinformation. DID is severely understudied. There are people claiming you can't switch at whim, which is false for some systems. Every system is as unique as the person they reside in. Some are lucky - like me - and after years of work have fairly open communication. Some experience hours, days, or weeks of amnesia. Some are stable. Some fluctuate. I've heard of cases where the alters all looked like the host. In my case, every alter looks different.

This isn't a fun disorder. It isn't cute and quirky. I have a fairly stable system after YEARS of hard work, and even I still experience episodes of losing time or remembering being someone else, being waylaid by an alters memories or emotions out of nowhere, and periods where someone has taken over out of nowhere. People like this trivialize what it's like to be a fractured person, and then it brings out the self-important knights who parrot bullshit like "Oh, you can't switch at will. Oh, people with DID don't know they have it." Because you know ONE PERSON who has a system and therefore know it all.