Optional e-mail hiding in authors list

[Calinou]

For publishing on the Internet, it might be preferable to hide the e-mails.

[cryham]

I would even say not optional, hidden by default. You are serving whole lists of emails on Authors tab that crawlers/bots could collect for email spam lists and other malicious intent.
E.g. the rails example has 2307.

[quang-ha]

Does this has any potential to be done?