In addition to just understanding, I think the goal of communication is to accurately convey a message to a specific audience, and that audience to receive and comprehend said message.
When that doesn't effectively take place, whether the fault of the communicator, or the audience, things get misconstrued, feelings can get hurt, tempers can flair, and rants can get deleted. I don't know if FISD offers love, but you must love me to have my picture in your signature banner.