Have you ever been bullied, online and/or in real life? That problem for today's youth is sky rocketing because social media is a place that encourages this behavior anonymously. Growing up in a time where yes, we are free to express ourselves anonymously (or known by choice) seems to bother you, so may be the victims of cyber bullying that is also a push of a button away for them to see the damage being done by these cyber bullies. You think that doesn't upset or annoy them, especially if little could be done about it? If the problem is made known that the person is being bullied to someone in real life, you'd be surprised how many people wouldn't actually listen to them. How many are overlooked at and 'it's part of growing up' is the response. Or in some cases which when I was first being bullied, being told that I was 'too paranoid' just because I didn't know these peoples names. Hell, I was stalked at one point and had no evidence or witnesses to report it to and I never said anything to anyone about it. If I'm told I was paranoid for not knowing names then what difference would it have made.
What about coming from a broken home? Where they may be raised by a single parent and issues start going on, or even if both parents are in the household and abuse happens to them. Many whether if it's shown or not, being sexually abused. Where would they go if they aren't able to tell their family members and feel like they would be threatened to tell someone because of a possibility of being taken away? Or if they in fact had nobody to turn to and the thought that a God loves them while going through what they are going through isn't going to sound convincing to them at that time.
The reason why more teens are getting depressed and coming online to seek help is because of the fact they feel they have nowhere to go. You can't be quick to assume as to whether or not they have 'enough faith' to simply have all their issues resolved. Often times, it doesn't. They need human intervention, too, and while it may not be the best decision to look for it online, it is an option being sought because they can. You don't know a situation someone is in unless you actually walk a mile in their shoes. Just because you feel you have enough faith doesn't mean that the same feeling applies to everyone. Even if they had any type of faith, that shouldn't mean that they would never feel the way they may be feeling if they are having these said situations going on.
Depression is one of the most if not the most problem that America is dealing with, regardless if it's a teen or an elderly person going through with it. Depression is more complex than feeling sorry for one's self or needing a place to vent and then it'd all be over. Praying may again, not be always effective for the person because it doesn't always give instant results. What would it say for the person who is contemplating suicide and no answer is given to them? All it would take at that point is for them to reach for a rope or a knife. A depressed state of mind is where one is not 'themselves' and the lack of specific hormones that would be needed for them to not feel the way that they do. And while you are in your teenage years, it may not make it any easier for these victims. But it often goes ignored.