Judging by the Bandcamp United's (Union about to form at Bandcamp) feed, it seems they were nearing the completion of their initial steps to ask SongTradr to recognize and negotiate with the union. The "Last Call" post was made just 4 days ago: https://union.place/@bandcampunited/111219165521125342 Wonder if it ever got started or SongTradr tried to nip this whole thing in the bud?
Could this be considered a union busting action? Especially if the union was planning to negotiate for remote work. Edit: previously said strike breaking instead of union busting.
"Strike breaking" is a different epithet, you're looking for "union busting". Nobody at Bandcamp is on strike.