I noticed there was a spot to add this score under the profile page? Is this something that is recommended?

I receive constant notifications from Field Level, Sport Recruits, Stack Athlete etc... Recently, I have gotten notifications that 2 coaches have reached out to our coach for contact info, but of course you have to pay to find out who? Is this a scam or real. Our coach did confirm one coach reached out, and it is one that we attended an ID camp for, but I have no idea if that was at all related to the whatever happens on the coach side of these platforms. Any insight on what platforms coaches actually use as they build their lists and search for players?