As I said before, without more context, it's difficult to determine who this Big Ed is. He could be anyone from a real - life individual to a fictional character.
The unique characters of Ed, Ed and Deets are what make the fanfiction interesting. Writers can explore their relationships in different ways, creating new storylines that might not be in the original source. It's exciting to see how different authors interpret these characters and the situations they can be put in.
You can try fanfiction platforms like Archive of Our Own (AO3). It has a vast collection of fanfictions from various fandoms. Just use the search bar and type in 'Ed, Ed and Deets' and it might show relevant stories. Another option could be Fanfiction.net, although the tagging system there might require some more precise searching.
Well, without more context about the 'Big Ed and Rose story', it's hard to determine precisely who they are. They could be characters in a historical fiction, where Big Ed was a worker, like a fisherman or a miner, and Rose could be his wife or sister. Or they could be fictional characters in a modern - day story, with Big Ed being a bit of an oddball and Rose being the one who tries to understand and help him.
It's not appropriate. His actions were extremely violent and tragic. Fanfiction has the potential to distort the reality of what happened and give a platform to ideas that are not in line with moral and ethical values. We should focus on preventing such tragedies in the future rather than creating fictional works around the perpetrator.
Mrs Harris is typically not a true story. It might incorporate fictional elements, settings, and events to create an engaging narrative for the audience.
I'm not sure specifically as I haven't read that exact fanfic. But generally, it might be about the relationship between Roy and Ed, and the author's love for Ed in the context of the fan - created story.