葉月 almost 14 years ago comment #8393It's not. Just that for a really long time danbooru didn't have a crossover tag, just parody. But as you can see from 500+ posts tagged 'crossover', it became used now. And they're not related in any way within the system.
MD Anonymous almost 14 years ago I'm not too clear in my first post. What I meant is that when I tagged this as a parody it automatically tags it as crossover.