It’s hard to be upset at users that boosted or printed it. Many folks aren’t going to research deeply enough to realize it’s just a copy. Many others probably wouldn’t care. The first result that looks like what they need they just use, and if it works they boost the version they found.
It should only take 1 user to report and show that it’s a fraud/copy for BL to correct it and revoke any rewards so posters stop feeling safe to post copies.