To address point-by-point:
1) I can do the same thing with external documentation, something I already do to organize my thoughts.
2) You are assuming I care for having others give me constant input. I do not. Unless I'm having a specific problem, I can find my own answers easily enough.
3) I'll grant you that one. I could also potentially create something similar using JIRA, something I already use at work.
4) Pastebin. My questions tend to be very specific things, relating to, at most, two files.
That's all well and good for them. Hell, that's how I've learned. I just don't care for teaching like that. Again, I wouldn't mind doing articles. I've even considered doing something like that, if I ever had the time to dedicate to something like that. Thing is, you likely have had these things ingrained into your mind as a developer. I haven't. I've spent most of my life developing alone. That's just how I prefer to work.