Anyone ever used this opt-out?

Just came across this and wondered if anyone had ever heard of it or even used it.

http://www.networkadvertising.org/managing/opt_out.asp

I've seen adserver opt-out's before like for Doubleclick, etc., however if they're blocked in your HOSTS file there's no need to even bother letting them cookie you with instructions not to track you. I'd personally rather trust the HOSTS file over them!!!

If I understand this correctly (http://www.networkadvertising.org/managing/faqs.asp#question_9), you would need to exempt that cookie (http://www.networkadvertising.org/managing/faqs.asp#question_11) from being deleted by CCleaner. Otherwise the "opt-out" would be deleted each time your run CCleaner.

you would need to exempt that cookie ...

It's not one cookie, it's a cookie for every company in that list! I just tried it, and it created about 100 cookies. Needless to say, I will not exempt any of these, and continue to clean cookies with CCleaner.

yeah, this seems fairly simlar to the BeefTaco and Taco add-ons for firefox in that they create the opt out cookie for each opt-out-able site