I'm not anti-crossover, I'm pro-acknowledging in tags or synopsis that the timelines of the source materials don't line up canonically with the story you've created.
Like I'm so in on a Stranger Things/Supernatural fanfiction but at least acknowledge that Will Byers was taken in 1983 and Mary Winchester dies in 1983. Dean is 4 canonically when all the Hawkins stuff starts.
Or Harry Potter/Stranger Things! Harry Potter is only 3 when Will goes missing!
You have the free will to write whatever the hell you want, but like maybe mention you changed stuff, please?














