I've downloaded a fair amount, but nowhere near everything I probably should have. I downloaded a bunch of stories in RTF format, and one of my "maybe if I think about it while rereading" projects is to correct punctuation (I'm a big fan of the Oxford comma), grammar, word choice, and spelling. I do have a DTP package, so I daydream about making proper ebooks, but haven't done anything yet.
And, yes, the FFNET is frustrating - the format appears?designed to be hard to parse. I keep my "stories I've read or plan to read" in a spreadsheet, and a while back, I was looking into writing a Python program that would read the spreadsheet, line by line, then use the URL to look up the story and see if it had been updated. I could probably do something for AO3, but FFNET would not be fun.
