When you want to change your own behavior I think it's very worthwhile to think about the fear that you feel instead of identifying as the object of the chilling effects that someone else produces.
I also think that "trivial fear" is going to be understand by a lot of people outside of lesswrong. A ten-year old might know what you mean when you speak about trivial fear but not know what chilling effects happen to be.
I think the LessWrong habit of making up local jargon for existing well-understood things is a bad idea and shouldn't be encouraged. Using gratuitously different local jargon cuts people off from existing bodies of knowledge without them knowing it.
Does the surveillance state affect us? It has affected me, and I didn't realize that it was affecting me until recently. I give a few examples of how it has affected me: