I am all for doing things by standards, but to me this is de facto. No one uses case sensitive emails. If they did all sorts of weird things would happen: Peopl

I am all for doing things by standards, but to me this is de facto. No one uses case sensitive emails. If they did all sorts of weird things would happen: People couldn't log in, but other people could. There would be multiple accounts when there should be only one, etc. You would have to store every email in original format and in some canonical format for uniqueness, etc. It's a nightmare. If I had to guess the main reason this apocalypse is not happening already is because by default mysql indexes are case insensitive, so dude@dude.com is the same as dude@DUDE.com, so people who use mysql never realize this being an issue.