Indeed. I studied in China for a year (in 2005) and I remember that amongst the recommendations for travelers, one was to avoid showing your travel guides - or at least the maps - as most would raise eyebrows. I remember covering Taiwan on the map with my hand a few times when asking other college students about recommendations for holiday travels, so they wouldn't pick up on it.

On the other hand, it's not like it was grounds for paranoia either: that was usually a good conversation starter on the train. There's a wide disconnect between what the government says it will enforce, what it actually enforces, and what people actually think.

You could get into some weird conversations, but I generally did not come across much animosity because of these maps. Awkwardness, at worst. If there was any, you'd simply back out and apologize for the map being inaccurate.