Female Rising Star Effect

I got an invite to connect with a stranger on LinkedIn. It has happened before. Just a recruiter looking to make a commission I guess. I looked at their profile. It seemed new - only a few connections made already. Did not put their full name on their profile. The capitalization in the education section was not uniform. Duplicated some information in the education section. The feeling I got was that they did not spend a lot of effort on their profile.

LinkedIn showed me the notification for the invite. I somehow got to the same profile again. The strange thing different was that the connections were up to 50. It took me a few weeks to get in touch with my network to get 50 connections. Hmm. Very strange. The real kicker was when I checked a week later. This recruiter had 500+ connections.

What was the reason? I thought maybe because it was a female that posted her picture. Because the sloppy profile did not warrant a connection. They also seemed to be shooting in the dark with the invites. Maybe they spammed 10k people, and got a quite 500 accepting in no time. What was the purpose? All I know is that I am not accepting the invite. Why would I want to be connected with this stranger? No apparent benefit to me. Still an interesting rising star phenomenon at LinkedIn.