If I were having a hard time and wanted to talk to someone on PC, I wouldn't want to talk to just "anyone", I'd want a PC friend, someone I sort of knew to talk to so would look at who's online and PM one/some of those people I knew. If I were new or someone new approached me in crisis, I don't know that it would work very well as we don't know one another and I wouldn't be familiar with that person's situation, options, etc. to be very effective with comfort or active listening.