[vadfa]

There is a difference between having a set of rules and doing ad hoc moderation.

[8note]

So writing a rule "don't show results from domains on list X" makes it ad hoc ad not a rule?

I don't think there's sombody manually removing each result from search queries by hand. That wouldnt meet latency constraints

[shadowgovt]

The set of rules includes "results that are illegal to divulge in a jurisdiction will not be shown."

[shkkmo]

Since Google is doing this voluntarily, many of the blocked results were legal to divulge but Google is choosing not to, which does make it ad hoc.