I really want to help teens in need of someone to talk to?

I accidentally got the app 'Six Billion Secrets' and when I started reading it I noticed how all the of posts were about cutting, suicide, depression (and more). In the comments I noticed how some people were giving their email addresses and facebooks to the person who had posted about (per say) cutting. I thought that that was really nice of them to help out a complete stranger and wanted to do it myself. The idea is that a person who needs someone to talk to can contact you through email, or chat with you anonymously on a website. I do not want to post my email or aim on some random website as I think that would be a little foolish. Do you think it would be safe? I really want to be there for teens who need someone to talk to. Do you know of any safe way to do that?