I really like this testing out of classes. I might not have had a college degree, but that sure doesn't mean I haven't been learning and increasing my knowledge. Taking these tests proves that my autodidactic ways are successful (nothing pisses me off like someone who is a degree snob).

It comes down to whether you feel that the paper is valuable. @builderofcastles makes a good point about the value to the degree snobs you mention (these people are a pestilence on good education; and I ran into them at conferences all over the place...the Cathedral doesn't like self-edumacted monks ;>)

HOWEVER, if you get joy from the process, then do it! It can also help you identify areas that you might want to study more.