EVERY page on every site should be labeled with the ICRA ratings tag. IMO this issue is not open for debate by anyone. There simply is no valid argument to not have it. They are what makes the web filtering programs work 100% of the time, and you truly are putting it back into the hands of parents by doing this. Nobody can say you didn't offer a very legit safeguard, and then parents CAN be blamed.

So why don't hardly any sites use the ratings?.....

I hate to put it this way, but most adult webmasters would rather have children surfing their sites than block out a few potential sales from men surfing at work.

How many of you have internet ratings in your meta tags? If you don't, why not?