Please avoid using the word police in this context, it detracts from the work done by actual police officers.
that's a pretty good example of language policing.
The comment even got downvoted, so yes a good example all around.
Don't worry, I got it :)
Use of politically correct language, I guess
The euphemism treadmill. A growing list of things nobody can say, à la http://www.paulgraham.com/say.html. Linus being pressured to restrain himself after years of leading a famously successful project.