Yes, they do. If you've signed up for Webmaster Tools, you'll get notified by email.

They don't force anyone to sign up. If you do nothing other than fixing your website, eventually Google will check it again and remove from blacklist.

Seriously, what's your complaint? If you don't want to get blacklisted, don't let your site be hacked. If your site is hacked, and you're complaining that Google blacklisted it and notified you about it, you're dumb.

And guess what -- they provide this service (and also pay the real person to review your re-listing request) for FREE.