ruserious - 8:42 am on Apr 11, 2003 (gmt 0)

I think the filter should be off by default. Why? Not because I want adult sites in the SERPs, but because there will always be a reasonable amount of legitimate (i.e. non-adult sites) which will wrongly be marked as adult site by the algo. The error rate with that is pretty high. So prefiltering by default is a bad idea, IMHO.

I also have to agree with rfgdxm1, in that 99% of the time, you will be able to recognize such a page from the SERPs; and if in doubt DON'T click. ;)