tl;dr: The developer of Photopea, a browser-based photo editor, reports that users are stripping ads from his JavaScript code and republishing it on GitHub as their own projects, causing reputation damage when users confuse the clones with the original. He filed a DMCA takedown a month ago, but GitHub rejected it citing no violation of 17 U.S.C. § 1201 (anti-circumvention), likely via an automated response. He's asking HN whether to pursue legal action.