Ruby would likely approach SCP fanfiction with wide - eyed wonder, trying to understand the strange concepts. She might be a bit scared too as some SCPs are quite menacing. Weiss would be very critical. She'd point out how it goes against the norms of proper literature and the lack of moral lessons in some of it. Blake would be more open - minded. She could compare the SCP world to the different faunus cultures she's learned about, seeing it as another form of unique cultural (or in this case, fictional) creation. Yang might laugh at some of the over - the - top SCPs and their abilities, or she'd be turned off if it got too gory or disturbing.
The SCP Foundation is purely fictional. It's a collection of imaginative and often creepy stories and characters that are made up for entertainment purposes and have no basis in reality.
Crossover fanfics also attract new fans. If someone is a fan of another franchise and then discovers an interesting SCP Foundation crossover, they might become interested in the SCP Foundation itself. This helps to grow the community. For instance, a 'Star Wars' and SCP crossover could draw in 'Star Wars' fans who are curious about how the two would mix.