Sibling comment "It got taken down so obviously they handle DMCA like any other platform." Is in fact right. Not sure why I cant vouch for it or upvote.

Regardless, the DMCA is made so the copyright holder polices' their own copyright.

Just because X chooses to follow what Twitter faught for, which is following the law, not some extra agreements of upload filters, which ironically stifle potential fair use, like youtube, or causes un required licencing agreements due to litigation threat, parent seems to confelate that as in injustice, when in fact its backwards, they dont actually know if its the right's holder who uploaded it first untill they get a take down notice.