So, I got this random add from some guy I don't know. His name is somebody else. Steam profile:
http://steamcommunity.com/id/zverina
Could something bad happen if I accept this random request? I have never met this person, not in real life nor in game, and he hasn't given me an explanation as to why he added me. I don't know if just adding him would lead to anything (such as being hacked, phished, given a virus, ETC).
So, the jist of it is, is there a threat to accepting these random friend invites?