AFAIK knowingly failing to defend your copyright causes it to lapse (for example, Hasbro has been pretty cool about tolerating MLP:FiM fangames etc, but as soon as Fighting is Magic started getting major public exposure they were obligated to send a Cease and Desist or lose the property).
This might work for such a plan—I haven’t thought it out fully and obviously I Am Not A Lawyer.
AFAIK knowingly failing to defend your copyright causes it to lapse (for example, Hasbro has been pretty cool about tolerating MLP:FiM fangames etc, but as soon as Fighting is Magic started getting major public exposure they were obligated to send a Cease and Desist or lose the property).
This might work for such a plan—I haven’t thought it out fully and obviously I Am Not A Lawyer.
IIRC, that applies to trademark, but not necessarily to copyright. (IANAL, either.)
I too have never heard that this applies to copyright; just trademarks.
This is completely incorrect, or we wouldn’t have an orphan works problem.