[SilkRoadie]

So you have never shared a joke a work, got home and repeated the joke to friends or family?

People like to have a laugh. Most people repeating the joke are not claiming credit for creating it. They found it funny and shared it so others could find it funny to.

[DanBC]

Twitter gives you an easy way to share the joke while retaining attribution - the retweet.

I agree that most of the people are just sharing the joke, but a sizable lump of them are trying to create some kind of online brand which they use to get money.

[marrs]

So if we legislate against those people, we also legislate against anyone who tells a joke online.