Further to your first point about 'mediated' financials. I have tried downloading them into my own spreadsheets and found that many income statement line items have the wrong + or -. And it is not as if that is just an error in the title, because the error is sometimes there and sometimes not. The numbers add up correctly sometime, but other times not.

How on earth can you make any analysis of a company's results if you are using a +number that should be a -number?