How is NAT the browser's problem? You're about 10,000 words short of "excruciating", and about half a dozen reasons short of "a variety"
>There are no reason to continue using ancient protocol forever.
You undermine yourself with statements like this. I explicitly asked for excruciating detail. This response essentially sums up to "because I said so".
...and it's empirically incorrect, too: You can find a ton of reasons where people need FTP today if you look through this discussion. So many that I'm not going to bother repeating them here.
