The approach I see in most of the articles here is the same one I use periodically to clean out my mind. First, I examine my general philosophy of life for assumptions, and discard them. Then, I think, and try to come up logically with some replacements for those assumptions. I only partially succeed, and usually end up with a more open mind than before.
A typical process goes like this:
Alright, are drugs really so bad?
Well, what do drugs really do?
Drugs alter a state of mind to the point where an entirely artificial world can be created in my mind, that I would live in. They also carry a risk of death or dependency, both of which would destroy my life as I know it, replacing it with the life where I'm high as much as possible.
Is that bad?
For me? Yes. I'm not done with this world yet. But, if my life really did have no meaning for me, I might risk losing it in order to get high.
The value of this is, I've arrived at the same belief that I originally had, that Drugs are Bad, but now I really know why. It also created a possibility of changing a core assumption -- if drugs were good, I wouldn't want to be stuck believing that they were bad.
Not everyone can do this for themselves, especially fanatically religious people (Thou Shalt Not Question the Word!). It must be very helpful to have articles written to take people through at least the first part of this process.
What I want to know is, where can I find a similar community about other things, such as politics, religion, science, or other kinds of teenage insanity (drugs, alcohol, violence)?
It would be harder, though not impossible, to do that and remain unbiased about controversial issues. But if you can write about things like pornography, you should be able to write about things like US politics.
If I can't find such an animal, I may do that myself.