It could be, but I think it's also as likely it was the scrapers treating that as a trigger event of some type. eg you got a job and might have regrets.

I also saw... not sure what to call them, but honeypot friend requests? I used to get regular requests from profiles I didn't recognize with a generic pretty woman (I'd assume stock photography). Since I ignored them, they would re-request on intervals that were exactly 90 or 180 days. I occasionally glanced at them and there seemed to be no rhyme nor reason to their friends. I'd assume this was also some type of scraping, probably for friends-only profile data.