It's time to be unafraid
I was in the U.S for 12 years on various visas (F1, H1B, etc.), before I finally got my permanent residency. Apart from the first few, blissful years while I was in college, I was in a constant state of fear of not being able to stay in the U.S. My fear prevented me from visiting my folks for a periord of 5 years at one stretch of time. This despite the fact that I had never been out of status or done anything to jeopardize my future G.C. (well, except for that one little incident which I won't mention here
It's not surprising that people like JoeF are still paranoid (and spreading their paranoia) about losing their G.C. or not getting their citizenship. Its because the fear of being deported is so ingrained in our very souls, that we forget to enjoy any of the freedoms that this greencard bestows upon us.
So my advice to anyone contemplating a job change after getting their G.C. is this: DO IT NOW! A 5-year old could show the *intent* that USCIS requires. You could say, it was my honest intent to work for my sponsoring employer, but in the 4 years it took to get it, my intent changed. Or you could say, my current religious beliefs prevent me for working with my sponsoring employer. Or you could say, the color of the office furniture offends me now..... Or say that your desk was not ergonomic and your boss wouldn't buy you a new one....
USCIS is far tooooo busy to prove you are wrong and your intent was untrue. The 6 mnths is just a *conservative* way to demonstrate your ***indefinite*** intent.
DO IT NOW if you can find a better job (more secure, better pay, better eye candy, whatever floats your boat and runs your engine).
And finally, use these postings (by JoeF, et al) as a source of entertainment only.... Spend $100 and talk to a competent immigration attorney or two for more experienced, legal advice.
toodles
p.s. I had the misfortune of getting in JoeF's killfile last year. It seems to have grown substantially since then.