For me, I am well aware that monitoring exists on all formats however if one spends a lot of time in country, you eventually run afoul of some sort of censorship because we don't think of it as bad.
Personally, I do what I can to make things as difficult as possible for the Nannies to monitor me. Doesn't mean it stops it.
I find it encouraging when I hear the folks at gmail complaining about hacks publicly because it means that they are refusing to be sheep and comply with the Nannies.
jiejie's experience is not new, a friend was expelled from the country last year, banned from re-entry. He was tutoring a student who was involved in a revolt at the university. He said, he experienced similar problems as jiejie just before the authorities came.
So one needs to be aware.