On the one hand there is a group of people who continually strive to select the correct word when telling someone something. This group is often accused of being obscure and/or pedantic.
On the other hand is a group of people who don’t really care what word they use and who expect their listeners to understand anyway. In fact, they become angry if their listener attempts to clarify.
There are in total only two groups. Those seeking clarity are always in the same group no matter which way the communication is going, and those who simply expect others to understand them compose the second group.
This expectation by the second group of simply being understood is merely the reverse polarity of the expectation of being able to understand others without expending effort. In either case, this second group feels that work of communication is the exclusive responsibility of others.