Is this a scam?

I was casually clicking around browsing profiles, and I get to one girl's profile. Almost immediately the little "(she) has viewed your profile" pops up, and about 10 seconds later I get a message "I think we have a lot in common, let me know if you want to chat!". We seem to have very little in common (56% match, no shared interests, I'm not even in her age range).

To me this seems like a bot or cam-girl. The profile itself looks legit (several normal-looking pictures, no blatant advertising), but it all seems kind of suspicious. Are there known issues with fake accounts like this on OKC, or am I just being paranoid at the idea of actually getting a message from a girl?