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OK, I'll be that guy: what are we looking at here?

a list of ~16M google profiles

Alright, I'll be the other guy: what would this be useful for? Google profiles don't allow links, so SEO appears to be out.

Just to do it?

It's not for creating multiple google profiles, but for finding google profiles of other people.

Google profiles don't allow links?

And none of the links have a nofollow tag.