[kemayo]

> 2). Copyright exists and generally must be enforced lest the holder wishes to lose their rights.

You're thinking of trademarks. Copyright isn't affected by enforcement in the same way.

[aerostable_slug]

A bit OT, but my favorite use-it-or-lose-it trademark example: the Standard Oil gas station on Van Ness in SF (it looks almost exactly like a Chevron station).