The only thing I'll give to the info on the net, is, if somebody made a mistake, and hit the wrong key, it would be caught and changed very quickly. Maybe not overnight, but, in a timely fashion.
Where as, if it's in a book, and you don't catch a warning that a mistake was made, it might be a couple years down the road, and you start to use that load, it might cost you. I know I've caught a couple mistakes in some of my reloading manuals, pretty blatant, so easy to catch. But, a mistake that might just be a little too much, could get exciting. I still like my manuals, and will always use them for a reference.gypsyman