Also! What about people who like characters from different franchises? For example Sam Wilson appears in both the Captain America and Avengers movies. I also like Sif, who is only in the Thor movies. If we keep all the separate franchises, I will have to request both the Cap and the Thor movies to be able to get those characters. But if those two fandoms are what my writer matched on, and they wrote me a Sam/Sif fic in a crossover exchange, I would be really disappointed.