The harm is in the process of "teaching those civics a lesson" in uncontrolled enviornments, on public roads not intended for racing of any kind. It's all fun and games until someone's son, brother, father, sister or mother is killed. Who really cares if there is some "riced out civic" owner felt the need to prove his manhood? The responsible driver will ignore such immaturity.
I've been challenged by cars supposedly superior to mine, and while I knew that I could have easily put the "challenger" in his place, I don't feel that the lessons taught were not worth the fuel that would have been consumed in the process.
Ego is probably the biggest killer of man. It isn't a crime to want to have one's ego stroked every now and then, but there are ways to do it without taking the lives of innocents into one's hands.
Street racing is immature and dangerous. Doesn't matter if the driver is in a riced out civic, or a clean, cool Legend.
No one is denying that it happens, but this forum has chosen to openly frown on street racing. If there are Legend owners who feel the need to brag about such encounters, they can do so at the numerous other forums that allow it.
That said, all of this has been discussed before.