Guests, if they look through the threads and the discussions in the Forum, will soon note that most songs are given in their original, historical form, if that is known, since that is the root stock from which other versions are derived. Other versions are reproduced as well, giving us a picture of the song's evolution and providing users with a variety of options.
The songs are a record of our past, as has been stated before, and are important to all of us for that reason. Thankfully, no censorship is imposed.