Xenophobia?
More like Xenonausea.
Many times I have gone out of my way to help newbies who seemed genuinely interested.
But when I hear words like "Tulip" or "Ponzi" for the 10000th time, I just can't help feeling irritated and rolling my eyes. I'm only human.
Now combine the above with the fact that most people on this forum are young males who have not been trained in customer service.
It's hardly surprising that they are not always nice to newbies.
I don't think it's a big issue. Moderate growth is our friend. If you can't think of a strong reason of getting into bitcoin, and "bad customer service" is all it takes to scare you away, then you probably shouldn't. At least not at this stage. Bitcoin 0.x is not ready for the mainstream yet.