Q: And what do you find beneficial about this?
A: that's when you discover what your singing voice can really do. real life is unscripted. 99.9% of our talking is spent unscripted. it is automatically genuine when you are making it up. the 'weird challenge' is to do scripted material. even the best actors in the world still sometimes sound fake doing this. it is significantly more difficult to find a genuine voice when doing scripted material (spoken or sung) whereas the genuineness is pretty much there by default when you are making it up. for example try reading a book out loud. then compare that to how you normally sound when you are talking to real people throughout your day. you'll see which one is more genuine. unless you happen to be an awesome voice actor in which case maybe the written one might sound totally bang-awesome, but actually still probably fake. unless you've really got the seasoned touch of 1,000 ninjas