If you want to make proprietary software that's cool, but client-side JavaScript was a terrible choice. The cat is out of the bag.
There's a reason software for which you purchase a license key generally doesn't give you source code outside rock-solid legal agreements.
Because what I see is essentially "they're storing stolen property" but the burden of proof is on the author to prove it was, indeed, stolen.
I imagine the bar for that is pretty high otherwise anyone could weaponize DMCA to target their competitors' repositories.
That's not what OP alleges - they are saying people are redistributing modified versions of OP's copyrighted code. DMCA is an appropriate measure in such a situation, but it's unclear why OP's DMCA takedown was rejected by GitHub. Without more detail, it's hard to comment further
https://reclaimthenet.org/kiwi-farms-dmca-subpoena-anonymous...
That is an extremely disingenuous and bad faith interpretation of what OP has said and I think you know it. You want to be edgy? Go comment on Reddit.
OP is rightly frustrated that their copyrighted work, that they’ve been working on full time for over a decade, is simply being ripped off by people and GitHub refuses to do anything about it.
Shifting blame to GitHub is absolutely idiotic.
Try removing locks from your doors in a high crime area (which is what the Internet is) then being indignant when the police can't stop all the criminals stealing your property.
This is a good faith contribution to the discussion, and frankly, the way things are going, the point it raises is something most of us need to consider.