As an example, Sikhs in Sweden have a religious exemption from the laws against carrying knives.
Concerning this particular example, I really don't think that the Kopimism founders are out to get around any laws. Thy are much more interested in the philosophical question of what is morally right, where they land on the opposite end of the spectrum from hard-core copyright defenders.
On the other hand, I think Sikhs make a small concession in that they wear smaller-than usual kirpans, only a few inches long, which often qualifies as a pocket knife and is legal.
Concerning this particular example, I really don't think that the Kopimism founders are out to get around any laws. Thy are much more interested in the philosophical question of what is morally right, where they land on the opposite end of the spectrum from hard-core copyright defenders.