Yes it's a phase for some and some quit after a week. Well, let them. We're not paying them for writing, so they can quit whenever they want. Fine with me.
I agree that the quality in the paper-chase section is usually rather low with some exceptions. But a lot of them are beginners. Beginners always start on paper, and no matter how bad you are as a newbie, that's often the time when it's the most fun. Everything is so new to you, a simple piece will knock you off your feet and you are sooo proud of every little graffiti that you made.
Some of them behave like immature children... well, maybe they are. None of us was born as a man.
If you think the sketches here are bad, check out the graffiti section at: http://www.ledheavy.com/forum/
that's really scary. And the worst thing: They even get got comments for that bullshit.