my cold take on the Threads federation thing is: if you simply consider them not as some mystical "platform" but as any other "instance", then they're an over-sized under-moderated data-scraping instance housing many vile users right up to the point of "technically legal free speech"... and we've all suspended instances before for much less.
I've said it before, but Meta is the only instance operator currently sending me a class action lawsuit payment for past data abuses