Mike, doing this does not mean that Google is evil or anything of the sort. That's linkbait and you know it.

They're protecting themselves from what might be automated queries. There's likely nothing you or they can do about it, as lowering the rate is probably opening them to attacks/system gaming.

Here's a thought: switch your results-per-page to a higher number so you can pull more before they get suspicious. With luck, that would mean you take longer to get through a page so that they also stop thinking you're a robot.

EDIT: Also, if this was a joke, ha-ha, you got me, etc.