That's a great article and it sums up the issue well, while providing a framework for those needing real answers toward getting them, instead of nothing, or derision at worst.
I myself especially dislike those whose question basically boils down to "do my work for me" and "give me the code"; to my old ears they sound like script kiddies looking for "0-day passwordz", if you get my drift.
Those that look like the need a nudge, or genuine help, and have shown what they have tried - well, they'll get a -ton- of help from me; I think I proved that in that R/C car hacking thread not too long back - that was a fun one, and I'm glad it turned out well in the end. In that particular case, it was about something that didn't have a lot of info available on the internet, but the poster was clearly trying to figure it out from the first post - it just sorta rolled from there.
But some things, like questions on servos and power needs; they have been answered over and over - and over again. Then again, maybe the playground - in the servo library examples, tutorials, etc - maybe they don't mention anything (if not, they should). I did notice that they do seem to indicate "connect the grounds" which is a good thing. Even so, there are plenty of other references; there really is no need to post this question at all, unless the poser of the question did connect everything up right, and used a proper power supply, and was still having problems. If that were the case, and they presented evidence of it (code, schematics, pictures, video, debug output, etc) - then they have a legitimate case, and should seek help on a forum.
So often though - this isn't the case, and it is tiring to see. Maybe the article you posted will help some. I certainly hope it does...