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23andMe User Data Stolen in Targeted Attack on Ashkenazi Jews
(www.wired.com)
This is a most excellent place for technology news and articles.
if it's viewable in a browser, it can be scraped.
You can make it more annoying for scrapers, but in the end, you need to show stuff to your users, and that's what scrapers basically emulate in the end.
And as for being a vulnerability: Finding the murderer of a cold case