Pretty weird, I have been operating a number of fake accounts for spamming, trolling and information retrieval purposes for years and never got a single account

Pretty weird, I have been operating a number of fake accounts for spamming, trolling and information retrieval purposes for years and never got a single account blocked. I've only got challenges to identify people in pictures if too many people deny your friend request in some time window. But this is easy to solve as you can see the faces by searching their name in second window.