Part-time job I didn't know about

I don’t get how recruiters can acquire people like this, I’ve just received this on Linkedin from somewhere outside my network:

I need your help as I am seeking IT professionals for […] . Please have a look at these positions and let me know if you can recommend someone: […]

(S)he is not my friend, never contacted, did not offer me anything, but asked for my help. It can be a good point however, because at least (s)he realized, that my profile is not a good fit for that position, so tried another way. Do or do not, but never try, right, Yoda? :)