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A comment on Facebook crawls links in PDFs you send in Messenger. Parent comment

Re:Facebook crawls links in PDFs you send in Messenger by 9HZZRfNlpR on Saturday October 26, 2019 @12:21PM (#21364556)
I have had similar experiences, numerous to be more exact. The latest was 10 yrs old WordPress blog living on WordPress.com subdomain, definitely not hacked. It was about science, to be more exact, about neurology.
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