My experience is that they don't care at all. Had a couple of friendspam requests from profiles that made no attempt to look like a real person, but were simply

My experience is that they don't care at all. Had a couple of friendspam requests from profiles that made no attempt to look like a real person, but were simply a pouting photo and am invitation to follow a URL to an "adult dating" website with a sketchy looking URL. Reported them both and Facebook sent a polite generic message advising they had passed a review but I could prevent them from attempting to contact me in future if I wanted to.