One thing I know-- the alleged issue was "spam", not Copyright.
I've been working on my POE project since October 2014. That's almost 4-1/2 years now.
In all that time, only TWO people have EVER brought up the question of "Copyright".
The first was George Warner, who was buying-- and destroying for the sake of creating "restorations"-- a set of Skywalds. After first offering to help, he then pulled a "180" and DEMANDED that I remove "his" scans from my blog, which included his clean-ups of various Skywald covers. This caused Patrick Ford to interject, that Warner could have no real claim of Copyright on art he HAD NOTHING TO DO with the creation of. And, that Warner's entire objection stemmed from his learning, in the comments section of a COMICS JOURNAL interview with Jack Kirby, how I felt about S*** L**. No, REALLY.
The second was my brother, whose ONLY comment on my showing him my project was... "What about copyrights?" Geez.
Well... thanks to the "Killer Kittens From Beynd The Grave" blog... I have a DEFINITIVE answer to this BULLSHIT. Here it is, from the "COPYRIGHT.GOV" site:
"107. Limitations on exclusive rights: Fair use40
Notwithstanding the provisions of sections 106 and 106A, the fair use of a copyrighted work, including such use by reproduction in copies or phonorecords or by any other means specified by that section, for purposes such as criticism, comment, news reporting, teaching (including multiple copies for classroom use), scholarship, or research, is not an infringement of copyright. In determining whether the use made of a work in any particular case is a fair use the factors to be considered shall include