A question for IP experts: What is the legal status of falsely claiming copyright?
I often see reprints of works that are definitely in the public domain, stamped by their publishers with a current copyright (with no qualification as to whats being copyrighted, e.g., no restriction to a new introduction or to new illustrations and often theres no such new material in any case).
Given that such copyright notices could be interpreted as implying a threat of force that is regarded as illegitimate even under current IP law, is there any law against what theyre doing? Are they vulnerable to any sort of cease-and-desist order? Or are false copyright notices just regarded as harmless speech until they make an effort to enforce them?