And so they come out of the woodwork. I knew it! Sproggy is a supertroll .

Take that!
I was made aware of a thread opened up in the Mint forum, announcing the new PCLinuxOS 2011 release. That attracted one or two of those trolls - especially one comes to mind, claiming having been here for ever posting many posts and always treated badly. I managed to find the chap still in our members list with a proud count of 27 posts - and I failed to find any "bad" treatment to one of them.
His main gripe was that Texstar didn't want to include some U_buntu font rendering in PCLinuxOS.
So I encouraged him to put his keyboard where his mouth is and resign from here. He hasn't ... yet.
You'll get those - but to be honest, they are the minority.
Most are just looking for instant gratification, expecting everything works like it does in Windows and panicking when it doesn't. That is especially the case when, in a fit of over enthusiasm, they have deleted their old OS and can't get going with the new one .... PANIC

But those can be dealt with and as a teacher, Jim, I am sure you get those situations daily. I get them just being a father. Over aggressiveness from our side will not do any good. If you want to change that kind of attitude in others it won't be by preaching but by doing. Show them in your answers and reaction how it can be done - and most will learn swiftly. That is the challenge the more established members as well as admins and mods have - so lets face up to it. It is actually fun. What is more satisfying than successfully helping somebody? Just about nothing ...